Difference between revisions of "Aristotle" - New World Encyclopedia

From New World Encyclopedia
(removing unneeded links)
 
(39 intermediate revisions by 8 users not shown)
Line 1: Line 1:
I am working on this article.
+
{{Approved}}{{Images OK}}{{Submitted}}{{Paid}}{{copyedited}}
--[[User:Keisuke Noda|Keisuke Noda]] 14:55, 20 Sep 2005 (CDT)
+
{{Infobox_Philosopher
 +
| me = {{polytonic|Ἀριστοτέλης}} ''Aristotélēs''
 +
| image_name = Aristoteles Louvre.jpg
 +
| color = #B0C4DE
 +
| region = Western philosophy
 +
| era = [[Ancient philosophy]]
 +
| name = [[Aristotle]]
 +
| birth = 384 B.C.E.
 +
| death = March 7, 322 B.C.E.
 +
| school_tradition = Inspired the [[Peripatetic]] school and tradition of [[Aristotelianism]]
 +
| main_interests =[[Politics]], [[Metaphysics]], [[Science]], [[Logic]], [[Ethics]]
 +
| influences = [[Parmenides]], [[Socrates]], [[Plato]]
 +
| influenced = [[Alexander the Great]], [[Al-Farabi]], [[Avicenna]], [[Averroes]], [[Albertus Magnus]], [[Copernicus]], [[Galileo Galilei]], [[Ptolemy]], [[St. Thomas Aquinas]], and most of [[Islamic philosophy]], [[Christian philosophy]], [[Western philosophy]] and [[Science]] in general
 +
| notable_ideas = [[Golden mean (philosophy)|The Golden mean]], [[Reason]], [[Logic]], [[Biology]], Passion}}
  
 +
'''Aristotle''' ([[Greek language|Greek]]: {{polytonic|Ἀριστοτέλης}} ''Aristotélēs'') (384 B.C.E. – March 7, 322 B.C.E.) was a [[Greeks|Greek]] [[philosophy|philosopher]], a student of [[Plato]], and teacher of [[Alexander the Great]]. He wrote on diverse subjects, including [[physics]], [[metaphysics]], poetry (including theater), [[logic]], [[rhetoric]], [[politics]], [[government]], [[ethics]], [[biology]], and [[zoology]]. Along with [[Socrates]] and Plato, he was among the most influential of the [[Greek philosophy|ancient Greek philosophers]], as they transformed [[Presocratic]] Greek philosophy into the foundations of [[Western philosophy]] as it is known today. Most researchers credit Plato and Aristotle with founding two of the most important schools of [[ancient philosophy]], along with [[Stoicism]] and [[Epicureanism]].
  
17:22 19 September 2005 Kmweber
+
Aristotle's philosophy made a dramatic impact on both Western and Islamic philosophy. The beginning of [[Modern Philosophy|"modern" philosophy]] in the Western world is typically located at the transition from medieval, Aristotelian philosophy to [[mechanism|mechanistic]], [[Descartes|Cartesian]] philosophy in the sixteenth and seventeenth centuries. Yet, even the new philosophy continued to put debates in largely Aristotelian terms, or to wrestle with Aristotelian views. Today, there are avowed Aristotelians in many areas of contemporary philosophy, including ethics and metaphysics.
 +
{{toc}}
 +
Given the volume of Aristotle's work, it is not possible to adequately summarize his views in anything less than a book. This article focuses on the aspects of his views that have been most influential in the history of philosophy.
  
[[Image:aristotle.jpg|right|framed|Aristotle (sculpture)]]
+
==Life==
 +
Aristotle was born in Stageira, Chalcidice, in 384 B.C.E. His father was Nicomachus, who became physician to King Amyntas of Macedon. At about the age of eighteen, he went to [[Athens]] to continue his education at [[Academy|Plato's Academy]]. Aristotle remained at the academy for nearly twenty years, not leaving until after Plato's death in 347 B.C.E. He then traveled with [[Xenocrates]] to the court of Hermias of Atarneus in Asia Minor. While in Asia, Aristotle traveled with [[Theophrastus]] to the island of Lesbos, where together they researched the botany and zoology of the island. Aristotle married Hermias' daughter (or niece) Pythias. She bore him a daughter, whom they named Pythias. Soon after Hermias' death, Aristotle was invited by Philip of Macedon to become tutor to Alexander the Great.
  
'''Aristotle''' ([[Greek language|Greek]]: Αριστοτέλης
+
After spending several years tutoring the young Alexander, Aristotle returned to Athens. By 334 B.C.E.., he established his own school there, known as the Lyceum. Aristotle conducted courses at the school for the next eleven years. While in Athens, his wife Pythias died, and Aristotle became involved with Herpyllis of Stageira, who bore him a son that he named after his father, Nicomachus.  
Aristotelēs; [[384 B.C.E.]] – [[March 7]], [[322 B.C.E.]]) was an [[ancient Greek]] [[philosopher]]. Along with [[Plato]], he is often considered to be one of the two most influential philosophers in [[Western world|Western]] thought. He wrote many books about [[physics]], [[poetry]], [[zoology]], [[logic]], [[government]], and [[biology]].
 
  
== Introduction ==
+
It is during this period that Aristotle is believed to have composed many of his works. Aristotle wrote many dialogues, only fragments of which survived. The works that have survived are in treatise form and were not, for the most part, intended for widespread publication, and are generally thought to be mere lecture aids for his students.  
The three most influential [[Ancient philosophy|ancient Greek philosophers]] were Aristotle, [[Plato]] (a teacher of Aristotle) and [[Socrates]] (ca. [[470 B.C.E.]]-[[399 B.C.E.]]), whose thinking deeply influenced Plato. Among them they transformed [[Presocratic]] [[Greek philosophy]] into the foundations of [[Western philosophy]] as we know it. Socrates did not leave any writings, possibly as a result of the reasons articulated against writing philosophy attributed to him in Plato's dialogue ''[[Phaedrus (Plato)|Phaedrus]]''. His ideas are known to us only indirectly, through Plato and a few other writers. The writings of Plato and Aristotle form the core of [[Ancient philosophy]].
 
  
Their works, although connected in many fundamental ways, are very different in both style and substance. Plato mainly wrote philosophical [[dialogue]]s, that is, arguments in the form of conversations, usually with Socrates as a participant. Though the early dialogues are concerned mainly with methods of acquiring [[knowledge]] and most of the last ones with [[justice]] and practical [[ethics]], his most famous works expressed a synoptic view of ethics, [[metaphysics]], [[reason]], [[knowledge]] and human life. The fundamental idea of [[Plato]] is that knowledge gained through the [[senses]] is always confused and impure; true knowledge being acquired by the contemplative [[soul]] that turns away from the world. To attain such true knowledge, the philosopher must make use of the "royal science" of [[dialectic]]. One of the necessary obstacles of dialectic is dialogue itself which guides the interlocutors away from the paths to truth. The soul alone can have knowledge of the [[Forms]], the real essences of things, of which the world we see is but an imperfect copy. Such knowledge has ethical as well as [[scientific]] importance. Plato can be called, with qualification, an [[idealism|idealist]] and a [[rationalism|rationalist]].
+
Aristotle not only studied almost every subject possible at the time, but made significant contributions to most of them. In physical science, Aristotle studied anatomy, astronomy, economics, embryology, geography, geology, meteorology, physics, and zoology. In philosophy, he wrote on aesthetics, ethics, government, logic, metaphysics, politics, psychology, rhetoric, and theology. He also studied education, foreign customs, literature, and poetry. Because his discussions typically begin with a consideration of existing views, his combined works constitute a virtual encyclopedia of Greek knowledge.  
  
Aristotle, by contrast, placed much more value on knowledge gained from the senses and would correspondingly be better classed among modern [[empiricist]]s (see [[materialism]] and [[empiricism]]). He also achieved a "grounding" of dialectic in the [[Topics]] by allowing interlocutors to begin from commonly held beliefs ''[[Endoxa]]''; his goal being non-contradiction rather than [[Truth]]. He set the stage for what would eventually develop into the [[scientific method]] centuries later. Although he wrote dialogues early in his career, no more than fragments of these have survived. The works of Aristotle that still exist today are in [[treatise]] form and were, for the most part, unpublished texts. These were probably lecture notes or texts used by his students, and were almost certainly revised repeatedly over the course of years. As a result, these works tend to be eclectic, dense and difficult to read. Among the most important ones are ''Physics'', ''Metaphysics'', ''[[Nicomachean Ethics]]'', ''Politics'', ''[[De Anima]] (On the Soul)'' and ''[[Poetics]]''.
+
Upon Alexander's death in 323 B.C.E., anti-Macedonian sentiment in Athens once again flared. Having never made a secret of his Macedonian roots, Aristotle fled the city to his mother's family estate in Chalcis, explaining, "I will not allow the Athenians to sin twice against philosophy."<ref>W.T. Jones, ''The Classical Mind: A History of Western Philosophy'' (Harcourt Brace Jovanovich, 1980), 216.</ref> However, he died there of natural causes within the year.
  
Aristotle is known for being one of the few figures in history who studied almost every subject possible at the time. In science, Aristotle studied [[anatomy]], [[astronomy]], [[embryology]], [[geography]], [[geology]], [[meteorology]], [[physics]],and [[zoology]]. In philosophy, Aristotle wrote on [[aesthetics]], [[economics]], [[ethics]], [[government]], [[metaphysics]], [[politics]], [[psychology]], [[rhetoric]] and [[theology]].  He also dealt with [[education]], foreign customs, [[literature]] and [[poetry]]. His combined works practically comprise an [[encyclopedia]] of Greek knowledge.
+
==Methodology==
 +
[[Image:Sanzio 01 Plato Aristotle.jpg|thumb|right|[[Plato]] (left) and Aristotle (right), a detail of ''[[The School of Athens]],'' a fresco by [[Raphael]]. Aristotle gestures to the earth, representing his belief in knowledge through empirical observation and experience, while holding a copy of his ''Nicomachean Ethics'' in his hand, whilst Plato gestures to the heavens, representing his belief in [[The Forms]].]]
  
 +
Both [[Plato]] and Aristotle regard philosophy as concerning [[Universality (philosophy)|universal]] truths. Roughly speaking, however, Aristotle found the universal truths by considering [[particular]] things, which he called the essence of things, while Plato finds that the universal exists apart from particular things, and is related to them as their [[prototype]] or [[exemplar]]. For Aristotle, therefore, philosophic method implies the ascent from the study of particular phenomena to the knowledge of essences, while for Plato philosophic method means the descent from a knowledge of universal ideas to a contemplation of particular imitations of those ideas (compare the metaphor of the line in the ''Republic'').
  
 +
It is, therefore, unsurprising that Aristotle saw philosophy as encompassing many disciplines which today are considered part of natural science (such as biology and astronomy). Yet, Aristotle would have resisted the over-simplifying description of natural science as based entirely in observation. After all, all data requires some interpretation, and much of Aristotle's work attempts to provide a framework for interpretation.
  
== Biography ==
+
==Logic==
===Early life and studies at the Academy===
+
Aristotle is, without question, the most important [[logic]]ian in history. He deserves this title for two main reasons: (1) He was the first to consider the systematization of inferences as a discipline in itself (it would not be an exaggeration to say that he invented logic), and (2) his logical system was the dominant one for approximately 2000 years. [[Kant]] famously claimed that nothing significant had been added to logic since Aristotle, and concluded that it was one of the few disciplines that was finished. The work of mathematicians such as Boole and [[Frege]] in the nineteenth century showed that Kant was wrong in his estimation, but even contemporary logicians hold Aristotle in high regard.
[[Image:Bust of Aristotle.jpg|thumb|A [[bust (sculpture)|bust]] of Aristotle is a nearly ubiquitous ornament in places of high culture in [[the West]].]]
 
  
Aristotle was born at [[Stageira]], a [[apoikia|colony]] of [[Andros]] on the [[Macedonia|Macedonian]] peninsula of [[Chalcidice]] in [[384 B.C.E.]]. His father, Nicomachus, was court physician to King [[Amyntas III of Macedon]]. It is believed that Aristotle's ancestors held this position under various kings of Macedonia. As such, Aristotle's early education would probably have consisted of instruction in [[medicine]] and [[biology]] from his father. About his mother, Phaestis, little is known. It is known that she died early in Aristotle's life. When Nicomachus also died, in Aristotle's tenth year, he was left an [[orphan]] and placed under the guardianship of his uncle, [[Proxenus of Atarneus]]. He taught Aristotle [[Greek language|Greek]], [[rhetoric]], and [[poetry]] (O'Connor ''et al.'', [[2004]]). Aristotle was probably influenced by his father's medical knowledge; when he went to [[Athens]] at the age of 18, he was likely already trained in the investigation of natural phenomena.
+
Central to Aristotle's theory was the claim that all arguments could be reduced to a simple form, called a "[[syllogism]]." A syllogism was a set of three statements, the third of which (the conclusion) was necessarily true if the first two (the premises) were. Aristotle thought that the basic statements were of one of four forms:
  
From the age of 18 to 37 Aristotle remained in Athens as a pupil of [[Plato]] and distinguished himself at the ''[[Academy]]''. The relations between Plato and Aristotle have formed the subject of various legends, many of which depict Aristotle unfavourably. No doubt there were divergences of opinion between Plato, who took his stand on sublime, idealistic principles, and Aristotle, who even at that time showed a preference for the investigation of the facts and laws of the physical world. It is also probable that Plato suggested that Aristotle needed restraining rather than encouragement, but not that there was an open breach of friendship. In fact, Aristotle's conduct after the death of Plato, his continued association with [[Xenocrates]] and other [[Platonists]], and his allusions in his writings to Plato's doctrines prove that while there were conflicts of opinion between Plato and Aristotle, there was no lack of cordial appreciation or mutual forbearance. Besides this, the legends that reflect Aristotle unfavourably are traceable to the [[Epicureans]], who were known as slanderers. If such legends were circulated widely by [[patristic]] writers such as [[Justin Martyr]] and [[Gregory Nazianzen]], the reason lies in the exaggerated esteem Aristotle was held in by the early [[Christianity|Christian]] [[heretic]]s, not in any well-grounded historical tradition.
+
#All X's are Y's
 +
#No X's are Y's
 +
#Some X's are Y's
 +
#Some X's are not Y's
  
===Aristotle as philosopher and tutor===
+
Aristotle's main insight, the insight that more or less began logic as a proper discipline, was that whether an inference was successful could depend on purely formal features of the argument. For instance, consider the following two arguments:
After the death of Plato ([[347 B.C.E.]]), Aristotle was considered as the next head of the Academy, a post that was eventually awarded to Plato's nephew. Aristotle then went with Xenocrates to the court of [[Hermias]], ruler of [[Atarneus]] in [[Asia Minor]], and married his niece and adopted daughter, Pythia. In [[344 B.C.E.]], Hermias was murdered in a rebellion, <!--''(or a Persian attack?)''—> and Aristotle went with his family to [[Mytilene]]. It is also reported that he stopped  on [[Lesbos]] and briefly conducted biological research. Then, one or two years later, he was summoned to Pella, the Macedonian capital, by King [[Philip II of Macedon]] to become the tutor of [[Alexander the Great]], who was then 13.
 
  
[[Plutarch]] wrote that Aristotle not only imparted to Alexander a knowledge of ethics and politics, but also of the most profound secrets of philosophy. We have much proof that Alexander profited by contact with the philosopher, and that Aristotle made prudent and beneficial use of his influence over the young prince (although [[Bertrand Russell]] disputes this). Due to this influence, Alexander provided Aristotle with ample means for the acquisition of books and the pursuit of his scientific investigation.
+
#All cats are animals
 +
#All animals are made of cells
 +
#Therefore, all cats are made of cells
  
It is possible that Aristotle also participated in the education of Alexander's boyhood friends, which may have included for example [[Hephaestion]] and [[Harpalus]]. Aristotle maintained a long correspondence with Hephaestion, eventually collected into a book, unfortunately now lost.
+
and:
  
According to sources such as Plutarch and [[Diogenes]], Philip had Aristotle's hometown of Stageira burned during the [[340s B.C.E.]], and Aristotle successfully requested that Alexander rebuild it. During his tutorship of Alexander, Aristotle was reportedly considered a second time for leadership of the Academy; his companion Xenocrates was selected instead.
+
#All ducks are birds
 +
#All birds have feathers
 +
#Therefore, all ducks have feathers
  
===Founder and master of the Lyceum===
+
The particular substantive words differ in these two arguments. Nevertheless, they have something in common: a certain structure. On reflection, it becomes clear that ''any'' argument with this structure will be one where the truth of the conclusion is guaranteed by that of the premises.
In about [[335 B.C.E.]], Alexander departed for his Asiatic campaign, and Aristotle, who had served as an informal adviser (more or less) since Alexander ascended the Macedonian throne, returned to Athens and opened his own school of philosophy. He may, as [[Aulus Gellius]] says, have conducted a school of [[rhetoric]] during his former residence in Athens; but now, following Plato's example, he gave regular instruction in philosophy in a [[gymnasium (ancient Greece)|gymnasium]] dedicated to [[Apollo Lyceios]], from which his school has come to be known as the [[Lyceum]]. (It was also called the [[Peripatetic]] School because Aristotle preferred to discuss problems of philosophy with his pupils while walking up and down — ''peripateo'' the shaded walks — ''peripatoi'' — around the gymnasium).
 
  
During the thirteen years ([[335 B.C.E.]]&ndash;[[322 B.C.E.]]) which he spent as teacher of the Lyceum, Aristotle composed most of his writings. Imitating Plato, he wrote ''[[Dialogue]]s'' in which his doctrines were expounded in somewhat popular language. He also composed the several treatises (which will be mentioned below) on physics, metaphysics, and so forth, in which the exposition is more [[didactic]] and the language more technical than in the ''Dialogues''. These writings show to what good use he put the resources Alexander had provided for him. They show particularly how he succeeded in bringing together the works of his predecessors in Greek philosophy, and how he pursued, either personally or through others, his investigations in the realm of natural phenomena. [[Pliny the Elder|Pliny]] claimed that Alexander placed under Aristotle's orders all the hunters, fishermen, and fowlers of the royal kingdom and all the overseers of the royal forests, lakes, ponds and cattle-ranges, and Aristotle's works on zoology make this statement more believable. Aristotle was fully informed about the doctrines of his predecessors, and [[Strabo]] asserted that he was the first to accumulate a great library.
+
==Metaphysics==
 +
As with [[logic]], Aristotle is the first to have treated [[metaphysics]] as a distinct discipline (though, more than in the case of logic, other philosophers has discussed the same specific issues). Indeed, the very word "metaphysics" stems from the ordering of Aristotle's writing (it was the book prior to his ''Physics'').
 +
 
 +
===Causality===
 +
Aristotle distinguishes four types of [[causality|cause]]: Material, formal, efficient, and final. His notion of efficient causation is closest to our contemporary notion of causation. To avoid confusion, it is helpful to think of the division as one of different types of explanations of a thing's being what it is.
  
During the last years of Aristotle's life the relations between him and Alexander became very strained, owing to the disgrace and punishment of [[Callisthenes]], whom Aristotle had recommended to Alexander. Nevertheless, Aristotle continued to be regarded at Athens as a friend of Alexander and a representative of Macedonia. Consequently, when Alexander's death became known in Athens, and the outbreak occurred which led to the [[Lamian war]], Aristotle shared in the general unpopularity of the Macedonians. The charge of [[impiety]], which had been brought against [[Anaxagoras]] and [[Socrates]], was now, with even less reason, brought against Aristotle. He left the city, saying (according to many ancient authorities) that he would not give the Athenians a chance to sin a third time against philosophy. He took up residence at his country house at [[Chalcis]], in [[Euboea]], and there he died the following year, [[322 B.C.E.]]. His death was due to a disease, reportedly 'of the stomach', from which he had long suffered. The story that his death was due to [[hemlock]] poisoning, as well as the legend that he threw himself into the sea "because he could not explain the [[tide]]s," is without historical foundation.
+
The material cause is that from which a thing comes into existence as from its parts, constituents, substratum or materials. This reduces the explanation of causes to the parts (factors, elements, constituents, ingredients) forming the whole (system, structure, compound, complex, composite, or combination), a relationship known as the part-whole causation. An example of a material cause would be the marble in a carved statue, or the organs of an animal.
  
Very little is known about Aristotle's personal appearance except from hostile sources. The statues and busts of Aristotle, possibly from the first years of the Peripatetic School, represent him as sharp and keen of countenance, and somewhat below the average height. His character&mdash;as revealed by his writings, his will (which is undoubtedly genuine), fragments of his letters and the allusions of his unprejudiced contemporaries&mdash;was that of a high-minded, kind-hearted man, devoted to his family and his friends, kind to his slaves, fair to his enemies and rivals, grateful towards his benefactors. When [[Platonism]] ceased to dominate the world of [[Christianity|Christian]] speculation, and the works of Aristotle began to be studied without fear and prejudice, the personality of Aristotle appeared to the Christian writers of the [[13th century]], as it had to the unprejudiced pagan writers of his own day, as calm, majestic, untroubled by passion, and undimmed by any great moral defects, "the master of those who know".
+
The formal cause argues what a thing is, that any thing is determined by the definition, form, pattern, essence, whole, synthesis, or archetype. It embraces the account of causes in terms of fundamental principles or general laws, as the whole (that is, macrostructure) is the cause of its parts, a relationship known as the whole-part causation. An example of a formal cause might be the shape of the carved statue, a shape that other particular statues could also take, or the arrangement of organs in an animal.
  
== Methodology ==
+
[[Image:aristotle.jpg|thumb|150px|left|Aristotle]]
Aristotle defines philosophy in terms of [[essence]], saying that philosophy is "the science of the universal essence of that which is [[actual]]". Plato had defined it as the "science of the [[idea]]", meaning by idea what we should call the unconditional basis of [[phenomena]]. Both pupil and master regard philosophy as concerned with the [[universal]]; Aristotle, however, finds the universal in [[particular]] things, and called it the essence of things, while Plato finds that the universal exists apart from particular things, and is related to them as their [[prototype]] or [[exemplar]]. For Aristotle, therefore, philosophic method implies the ascent from the study of particular phenomena to the knowledge of essences, while for Plato philosophic method means the descent from a knowledge of universal ideas to a contemplation of particular imitations of those ideas. In a certain sense, Aristotle's method is both [[Inductive reasoning|inductive]] and [[Deductive reasoning|deductive]], while Plato's is essentially deductive.
+
The efficient (or "moving") cause is what we might today most naturally describe as the cause: the agent or force that brought about the thing, with its particular matter and form. This cause might be either internal to the thing, or external to it. An example of an efficient cause might be the artist who carved the statue, or the animal's own ability to grow.
  
In Aristotle's terminology, the term ''natural philosophy'' corresponds to the phenomena of the natural world, which include: [[motion]], [[light]], and the [[laws of physics]]. Many centuries later these subjects would later become the basis of modern science, as studied through the [[scientific method]]. The term ''philosophy'' is distinct from metaphysics, which is what moderns term [[philosophy]].
+
The final cause is that for the sake of which a thing exists or is done, including both purposeful and instrumental actions and activities. The final cause, or ''telos,'' is the purpose or end that something is supposed to serve, or it is that from which and that to which the change is. This also covers modern ideas of mental causation involving such psychological causes as volition, need, motivation, or motives, rational, irrational, ethical, all that gives purpose to behavior. The best examples of final causes are the functions of animals or organs: for instance, the final cause of an eye is sight ([[teleology]]).
  
In the larger sense of the word, he makes philosophy coextensive with [[reasoning]], which he also called "science". Note, however, that his use of the term ''science'' carries a different meaning than that which is covered by the scientific method. "All science (''dianoia'') is either practical, poetical or theoretical." By practical science he understands ethics and politics; by poetical, he means the study of poetry and the other fine arts; while by theoretical philosophy he means physics, mathematics, and metaphysics.
+
Additionally, things can be causes of one another, causing each other reciprocally, as hard work causes fitness and vice versa, although not in the same way or function, the one is as the beginning of change, the other as the goal. (Thus, Aristotle first suggested a reciprocal or circular causality as a relation of mutual dependence or influence of cause upon effect.) Moreover, Aristotle indicated that the same thing can be the cause of contrary effects; its presence and absence may result in different outcomes. For example, a certain food may be the cause of health in one person, and sickness in another.
  
The last, philosophy in the stricter sense, he defines as "the knowledge of [[immaterial]] being," and calls it "first philosophy", "the theologic science" or of "being in the highest degree of abstraction." If logic, or, as Aristotle calls it, [[Analytic]], be regarded as a study preliminary to philosophy, we have as divisions of Aristotelian philosophy (1) [[Logic]]; (2) Theoretical Philosophy, including [[Metaphysics]], [[Physics]], [[Mathematics]], (3) Practical Philosophy; and (4) Poetical Philosophy.  
+
===Substance, matter, and form===
 +
Aristotelian [[metaphysics]] discusses particular objects using two related distinctions. The first distinction is that between [[substance]]s and "accidents" (the latter being "what is said of" a thing). For instance, a [[cat]] is a substance, and one can say of a cat that it is gray, or small. But the greyness or smallness of the cat belong to a different category of being—they are ''features'' of the cat. They are, in some sense, dependent for their existence on the cat.
  
=== Aristotle's logic ===
+
Aristotle also sees entities as constituted by a certain combination of matter and form. This is a distinction which can be made at many levels. A cat, for instance, has a set of organs (heart, skin, bones, and so on) as its matter, and these are arranged into a certain form. Yet, each of these organs in turn has a certain matter and form, the matter being the flesh or tissues, and the form being their arrangement. Such distinctions continue all the way down to the most basic elements.
''Main article: [[Aristotelian logic]]''
 
  
==== History ====
+
Aristotle sometimes speaks as though substance is to be identified with the matter of particular objects, but more often describes substances as individuals composed of some matter and form. He also appears to have thought that biological organisms were the paradigm cases of substances.
Aristotle "says that 'on the subject of reasoning' he 'had nothing else on an earlier date to speak about'" (Boche&#324;ski, [[1951]]). However, Plato reports that [[syntax]] was thought of before him, by [[Prodikos of Keos]], who was concerned by the right use of words. Logic seems to have emerged from [[dialectics]], the earlier philosophers used concepts like ''[[reductio ad absurdum]]'' as a rule when discussing, but never understood its logical implications. Even Plato had difficulties with logic. Although he had the idea of constructing a system for [[deduction]], he was never able to construct one. Instead, he relied on his [[dialectic]], which was a confusion between different sciences and methods (Boche&#324;ski, [[1951]]). Plato thought that deduction would simply follow from [[premise]]s, so he focused on having good premises so that the [[conclusion]] would follow. Later on, Plato realised that a method for obtaining the conclusion would be beneficial. Plato never obtained such a method, but his best attempt was published in his book ''Sophist'', where he introduced his division method (Rose, [[1968]]).
 
  
====Analytics and the ''Organon''====
+
===Universals and particulars===
What we call today Aristotelian logic, Aristotle himself would have labelled analytics. The term logic he reserved to mean dialectics. Most of Aristotle's work is probably not authentic, since it was most likely edited by students and later lecturers. The logical works of Aristotle were compiled into six books at about the time of [[Christ]]:
+
Aristotle's predecessor, [[Plato]], argued that all sensible objects are related to some universal entity, or "form." For instance, when people recognize some particular book for what it is, they consider it as an instance of a general type (books in general). This is a fundamental feature of human experience, and Plato was deeply impressed by it. People don't encounter general things in their normal experience, only particular things—so how could people have experience of particulars ''as being'' of some universal type?
  
#''Categories''
+
Plato's answer was that these forms are separate and more fundamental parts of reality, existing "outside" the realm of sensible objects. He claimed (perhaps most famously in the ''Phaedo'') that people must have encountered these forms prior to their birth into the sensible realm. The objects people normally experience are compared (in the ''Republic'') with shadows of the forms. Whatever else this means, it shows that Plato thought that the forms were ontologically more basic than particular objects. Because of this, he thought that forms could exist even if there were no particular objects that were related to that form. Or, to put the point more technically, Plato believed that some universals were "uninstantiated."
#''On Interpretation''
 
#''Prior Analytics''
 
#''Posterior Analytics''
 
#''Topics''
 
#''On Sophistical Refutations''
 
  
The order of the books (or the teachings from which they are composed) is not certain, but this list was derived from analysis of Aristotle's writings. There is one volume of Aristotle's concerning logic not found in the ''Organon'', namely the fourth book of ''Metaphysics.'' (Boche&#324;ski, 1951).
+
Aristotle disagreed with Plato on this point, arguing that all universals are instantiated. In other words, there are no universals that are unattached to existing things. According to Aristotle, if a universal exists, either as a particular or a relation, then there must have been, must be currently, or must be in the future, something on which the universal can be predicated.  
  
====Modal logic====
+
In addition, Aristotle disagreed with Plato about the location of universals. As Plato spoke of a separate world of the forms, a location where all universal forms subsist, Aristotle maintained that universals exist within each thing on which each universal is predicated. So, according to Aristotle, the form of apple exists within each apple, rather than in the world of the forms. His view seems to have been that the most fundamental level of reality is just what people naturally take it to be: The particular objects people encounter in everyday experience. Moreover, the main way of becoming informed about the nature of reality is through sensory experience.
Aristotle is also the creator of [[syllogism]]s with modalities ([[modal logic]]). The word modal refers to the word 'modes', explaining the fact that modal logic deals with the modes of [[truth]]. Aristotle introduced the qualification of 'necessary' and 'possible' premises. He constructed a logic which helped in the evaluation of truth but which was very difficult to interpret. (Rose, 1968).
 
  
====See also====
+
The basic contrast described here is one that echoed throughout the history of Western philosophy, often described as the contrast between [[rationalism]] and [[empiricism]].
* [[Non-Aristotelian logic]]
 
  
=== Aristotelian science ===
+
===The five elements===
Aristotelian discussions about science had only been qualitative, not quantitative. By the modern definition of the term, Aristotelian philosophy was not science, as this [[worldview]] did not attempt to probe how the world actually worked through [[experiment]]. For example, in his book ''The history of animals'' he claimed that human males have more teeth than female. Had he only made some observations, he would have found out that this claim is false.
+
Aristotle, developing one of the main topics of the [[Presocratics]], believed that the world was built up of five basic elements. The building up consisted in the combining of the elements into various forms. The elements were:
  
Rather, based on what one's senses told one, Aristotelian philosophy then depended upon the assumption that man's mind could elucidate all the laws of the universe, based on simple observation (without experimentation) through [[reason]] alone. 
+
*Fire, which is hot and dry
 +
*Earth, which is cold and dry
 +
*Air, which is hot and wet
 +
*Water, which is cold and wet
 +
*Aether, which is the divine substance that makes up the heavenly spheres and heavenly bodies (stars and planets)
  
One of the reasons for this was that Aristotle held that physics was about changing objects with a reality of their own, whereas mathematics was about unchanging objects without a reality of their own. In this philosophy, he could not imagine that there was a relationship between them.
+
Each of the four earthly elements has its natural place; the earth at the center of the universe, then water, then air, then fire. When they are out of their natural place they have natural motion, requiring no external cause, which is towards that place; so bodies sink in water, air bubbles up, rain falls, flame rises in air. The heavenly element has perpetual circular motion.
  
In contrast, today the term ''science'' refers to the position that thinking alone often leads people astray, and therefore one must compare one's ideas to the actual world through experimentation; only then can one see if one's ideas are based in reality.
+
This view was key to Aristotle's explanation of celestial motion and of gravity. It is often given as a paradigm of [[teleology|teleological explanation]], and became the dominant scientific view in Europe at the end of the middle ages.
  
====Aristotle's Four Causes====
+
==Philosophy of mind==
Aristotle names four "[[cause]]s" of things, but the word cause ([[Greek language|Greek]]: {{polytonic|&#945;&#7984;&#964;&#7985;&#945;}}, ''aitia'') is not used in the modern sense of "cause and effect", under which causes are events or states of affairs. Rather, the four causes are like different ways of ''explaining'' something:
+
Aristotle's major discussion of the nature of the [[mind]] appears in ''De Anima.'' His concern is with the "principle of motion" of living entities. He distinguishes three types of [[soul]]:
  
; The [[material cause]]: This is the material that makes up an object, for example, "the bronze and silver ... are causes of the statue and the bowl."
+
#Nutritive
; The [[formal cause]]: This is the blueprint or the idea commonly held of what an object should be. Aristotle says, "The form is the account (and the ''[[genera]]'' of the account) of the [[essence]] (for instance, the cause of an octave is the ratio two to one, and in general number), and the parts that are in the account."
+
#Sensory
; The [[efficient cause]]: This is the person who makes an object, or "unmoved movers" ([[deity|gods]]) who move nature. For example, "a father is a cause of his child; and in general the producer is a cause of the product and the initiator of the change is a cause." This is closest to the modern definition of "cause".
+
#Thinking
; The [[final cause]]: The final cause or ''[[telos (philosophy)|telos]]'' is the purpose or end that something is supposed to serve. This includes "all the intermediate steps that are for the end ... for example, slimming, purging, drugs, or instruments are for health; all of these are for the end, though they differ in that some are activities while others are instruments."
 
  
An example of an artifact that has all four causes would be a table, which has material causes (wood and nails), a formal cause (the blueprint, or a generally agreed idea of what tables are), an efficient cause (the carpenter), and a final cause (using it to dine on).
+
All plants and animals are capable of absorbing nutrition, so Aristotle held that they all have a nutritive soul. Yet, not all are capable of perceiving their surroundings. Aristotle thought this was indicated by a lack of movement, holding that stationary animals cannot perceive. He, therefore, concluded that the presence of this type of soul was what distinguished plants from animals. Finally, Aristotle held that what was distinctive of humans is their ability to think, and held that this requires yet another principle of motion, the thinking soul.
  
Aristotle argues that natural objects such as an "individual man" have all four causes. The material cause of an individual man would be the flesh and bone that make up an individual man. The formal cause would be the blueprint of man, that which is used as a guide to create an individual man and to keep him in a certain state called man. The efficient cause of an individual man would be the father of that man, or in the case of all men an “unmoved mover” who breathed (''anima'': breath) into the [[soul]] (''anima'': soul) of man. The final cause of man would be as Aristotle stated, “Now we take the human’s function to be a certain kind of life, and take this life to be the soul’s activity and actions that express reason.  Hence the excellent man’s function is to do this finely and well. Each function is completed well when its completion expresses the proper [[virtue]]. Therefore the human good turns out to be the souls’ activity that expresses virtue.”
+
Most of Aristotle's discussion of the soul is "naturalistic"—that is, it appears to only describe entities whose existence is already countenanced in the natural sciences (primarily, physics). This is especially brought out by his claim that the soul seems to be the ''form'' of the organism. Because of this, some contemporary advocates of [[functionalism]] in the philosophy of mind (just as [[Hilary Putnam]]) have cited Aristotle as a predecessor.
  
=====See also=====
+
In the ''De Anima'' discussion, however, there are places where Aristotle seems to suggest that the rational soul requires something beyond the body. His remarks are very condensed, and so incredibly difficult to interpret, but these few remarks were the focus of Christian commentators who attempted to reconcile Aristotelian philosophy with Christian doctrine.
* [[Aristotelian view of God]]
 
  
====The difference between natural objects and artifacts====
+
==Practical philosophy==
The difference between natural objects and an artifact is that natural objects have [[self movement]]. Aristotle defined the difference between a [[natural object]] and an [[artifact]] when he stated, “In contrast to these, a bed, a cloak, or any other artifact-insofar as it is described as such i.e., as a bed, a cloak, or whatever, and to the extent that it is a product of a craft-has no [[innate]] [[impulse]] to change; but insofar as it is coincidentally made of stone or earth or a mixture of these, it has an innate impulse to change and just to that extent. This is because a nature is a type of principle and cause of motion and stability within those things to which it primarily belongs in their own right and not coincidentally.” The natural objects are changed to artifacts through crafts but they have an innate impulse of self movement to convert through time to their natural state, and they will all turn into that state when all animals with reason are extinct from the earth.
+
===Ethics===
 +
Aristotle's main treatise on [[ethics]] is the ''Nichomachean Ethics,'' in which he gives the first systematic articulation of what is now called [[virtue ethics]]. Aristotle considered [[ethics]] to be a practical science, that is, one mastered by doing rather than merely [[reasoning]]. This stood in sharp contrast to the views of [[Plato]]. Plato held that knowledge of the good was accomplished through contemplation, much in the way in which mathematical understanding is achieved through pure [[thought]].  
  
====Gravity====
+
By contrast, Aristotle noted that knowing what the virtuous thing to do was, in any particular instance, was a matter of evaluating the many particular factors involved. Because of this, he insisted, it is not possible to formulate some non-trivial rule that, when followed, will always lead the virtuous activity. Instead, a truly virtuous person is one who, through habituation, has developed a non-codifiable ability to judge the situation and act accordingly.
''Main article: [[Aristotelian theory of gravity]]''
 
  
=== Aristotle's ethics ===
+
This view ties in with what is perhaps Aristotle's best-known contribution to ethical theory: The so-called "doctrine of the mean." He held that all the virtues were a matter of a balance between two extremes. For instance, courage is a state of character in between cowardice and brashness. Likewise, temperance is a state of character in between dullness and hot-headedness. Exactly where in between the two extremes the virtuous state lies is something that cannot be stated in any abstract formulation.
''Main article: [[Nicomachean Ethics]]''
 
  
Although Aristotle wrote several works on ethics, the major one was the ''Nicomachean Ethics'', which is considered one of Aristotle's great works; it discusses virtues. The ten books which comprise it are based on notes from his lectures at the [[Lyceum]] and were either edited by or dedicated to Aristotle's son, Nicomachus.
+
Also significant here is Aristotle's view (one also held by [[Plato]]) that the virtues are inter-dependent. For instance, Aristotle held that it is not possible to be courageous if one is completely unjust. Yet, such interrelations are also too complex to be meaningfully captured in any simple rule.
  
In ''Nicomachean Ethics'', Aristotle focuses on the importance of continually [[behavior|behaving]] virtuously and developing [[virtue]] rather than committing specific good actions. This can be opposed to [[Immanuel Kant|Kantian]] ethics, in which the primary focus is on individual action. ''Nicomachean Ethics'' emphasizes the importance of context to ethical behaviour &mdash; what might be right in one situation might be wrong in another. Aristotle believed that [[happiness]] is the end of life and that as long as a person is striving for [[goodness]], good deeds will result from that struggle, making the person virtuous and therefore happy.
+
Aristotle taught that virtue has to do with the proper function of a thing. An eye is only a good eye in so much as it can see, because the proper function of an eye is sight. Aristotle reasoned that humans must have a function that sets them apart from other animals, and that this function must be an activity of the [[soul]], in particular, its rational part. This function essentially involves ''activity,'' and performing the function well is what constitutes human [[happiness]].
  
== Aristotle's critics ==
+
===Politics===
Aristotle has been criticised on several grounds.
+
{{readout||right|250px|Aristotle believed that human nature is inherently political since individuals cannot achieve [[happiness]] without forming [[state]]s (political bodies) because the individual in isolation is not self-sufficient}}
 +
Aristotle is famous for his statement that "man is by nature a political animal." He held that [[happiness]] involves self-sufficiency and that individual people are not self-sufficient, so the desire for happiness ''necessarily'' leads people to form political bodies. This view stands in contrast to views of [[politics]] that hold that the formation of the state or [[city-state]] is somehow a deviation from more natural tendencies.
  
# At times, the objections that Aristotle raises against the arguments of his own teacher, [[Plato]], appear to rely on faulty interpretations of those arguments.
+
Like Plato, Aristotle believed that the ideal state would involve a [[ruling class]]. Whereas Plato believed that the philosophers should rule, Aristotle held that the rulers should be all those capable of [[virtue]]. Unfortunately, Aristotle believed that this was a fairly restricted group, for he held that neither [[women]], [[slave]]s, nor labor-class citizens were capable of becoming virtuous.
# Although Aristotle advised, against Plato, that knowledge of the world could only be obtained through experience, he frequently failed to take his own advice. Aristotle conducted projects of careful [[empirical]] investigation, but often drifted into [[abstract]] logical reasoning, with the result that his work was littered with conclusions that were not supported by empirical evidence; for example, his assertion that objects of different [[mass]] fall at different speeds under [[gravity]], which was later refuted by [[Galileo Galilei|Galileo]].
 
# In the [[Middle Ages]], roughly from the [[12th century]] to the [[15th century]], the philosophy of Aristotle became firmly established [[dogma]]. Although Aristotle himself was far from dogmatic in his approach to philosophical inquiry, two aspects of his philosophy might have assisted its transformation into dogma. His works were wide-ranging and [[systematic]] so that they could give the impression that no significant matter had been left unsettled. He was also much less inclined to employ the [[sceptic]]al methods of his predecessors, Socrates and Plato.
 
# Some academics have suggested that Aristotle was unaware of much of the current science of his own time, and that he was a far lesser [[mathematician]] than many of his learned contemporaries.
 
  
Aristotle was called not a great philosopher, but "The Philosopher" by [[Scholastic]] thinkers. These thinkers blended Aristotelian philosophy with Christianity, bringing the thought of Ancient Greece into the Middle Ages. It required a repudiation of some Aristotelian principles for the sciences and the arts to free themselves for the discovery of modern scientific laws and empirical methods.
+
For Aristotle, this ideal state would be one which would allow the greatest habituation of virtue and the greatest amount of the activity of contemplation, for just these things amount to human happiness (as he had argued in his ethical works).
  
The Western mind is "Aristotelian". By this we mean that it formats the external world into factual and "scien"-tific categories. (By "Scien"-tific we mean that something is knowable or known. Latin ''scientia'' = knowledge).
+
== The loss of his works ==
 +
Though Aristotle wrote many elegant treatises and dialogues ([[Cicero]] described his literary style as "a river of gold"),<ref>Marcus Tullius Cicero, [http://www2.cddc.vt.edu/gutenberg/1/4/9/7/14970/14970-h/14970-h.htm#BkII_11 Flumen orationis aureum fundens Aristoteles.] Retrieved January 25, 2007.</ref> the vast majority of his writings are now lost, while the literary character of those that remain is disputed. Aristotle's works were lost and rediscovered several times, and it is believed that only about one fifth of his original works have survived through the time of the Roman Empire.
  
Under the premise of external categorization, the Aristotelian mind has come to equate "experience" with the unified chronical and spatial [[ontological]] structure that is the "external" universe -- visible, audible and sensible by the handful of our common, well-identified senses.
+
After the Roman period, what remained of Aristotle's works were by and large lost to the West. They were preserved in the East by various [[Muslim]] scholars and philosophers, many of whom wrote extensive commentaries on his works. Aristotle lay at the foundation of the ''[[falsafa]]'' movement in [[Islamic philosophy]], stimulating the thought of [[Al-Farabi]], [[Ibn Sina]], [[Ibn Rushd]], and others.
  
By so equating the two, the Aristotelian mind is fully confident, or fully "positive" of the meanings of its utterances and the purposes of all actions. That is to say, it dismisses the possibility of dubious meanings as interpreted by subjects that are at variance in [[perspective]]s or [[phenomenology]], and it dismisses the importance of anything other than an [[objective]]ly defined "purpose" to an action.
+
As the influence of the ''falsafa'' grew in the West, in part due to Gerard of Cremona's translations and the spread of [[Averroism]], the demand for Aristotle's works grew. William of Moerbeke translated a number of them into Latin. When [[Thomas Aquinas]] wrote his [[theology]], working from Moerbeke's translations, the demand for Aristotle's writings grew and the Greek manuscripts returned to the West, stimulating a revival of Aristotelianism in Europe.
  
Therefore, the Aristotelian mind assumes that when subject A utters "I am [[Variable|X]]," he or she is referring to the same experience and is expressing the same purpose as subject B who also utters "I am [[Variable|X]]."
+
==Legacy==
 +
It is the opinion of many that Aristotle's system of thought remains the most marvelous and influential one ever put together by any single mind. According to historian Will Durant, no other philosopher has contributed so much to the enlightenment of the world.<ref>Will Durant, ''The Story of Philosophy'' (Simon & Schuster, Inc., 1926, ISBN 9780671739164), 92.</ref> He single-handedly began the systematic treatment of [[Logic]], [[Biology]], and [[Psychology]].
 +
 
 +
Aristotle is referred to as "The Philosopher" by [[Scholasticism|Scholastic]] thinkers like [[Thomas Aquinas]] (for instance, ''[[Summa Theologica]],'' Part I, Question 3). These thinkers blended  [[Aristotelianism|Aristotelian philosophy]] with Christianity, bringing the thought of Ancient Greece into the [[Middle Ages]]. The medieval English poet [[Geoffrey Chaucer|Chaucer]] describes his student as being happy by having
 +
<blockquote>At his bedded hed<br/>
 +
Twenty books clothed in blake or red,<br/>
 +
Of Aristotle and his philosophie ([[Chaucer]]).</blockquote>
 +
 
 +
The Italian poet [[Dante Alighieri|Dante]] says of Aristotle, in [[The Divine Comedy|the first circles of hell]],
 +
<blockquote>I saw the Master there of those who know,<br/>
 +
Amid the philosophic family,<br/>
 +
By all admired, and by all reverenced;<br/>
 +
There Plato too I saw, and Socrates,<br/>
 +
Who stood beside him closer than the rest ([[Geoffrey Chaucer|Dante]], ''[[The Divine Comedy]]'')</blockquote>
 +
 
 +
Nearly all the major philosophers in the sixteenth, seventeenth, and eighteenth centuries felt impelled to address Aristotle's works. The French philosopher [[Descartes]] cast his philosophy (in the ''Meditations'' of 1641) in terms of moving away from the senses as a basis for a scientific understanding of the world. The great Jewish philosopher [[Spinoza]] argued in his ''Ethics'' directly against the Aristotlean method of understanding the operations of nature in terms of final causes. [[Leibniz]] often described his own philosophy as an attempt to bring together the insights of Plato and Aristotle. [[Kant]] adopted Aristotle's use of the form/matter distinction in describing the nature of representations—for instance, in describing space and time as "forms" of intuition.
  
 
== Bibliography ==
 
== Bibliography ==
''Note: [[Bekker numbers]] are often used to uniquely identify passages of Aristotle. They are identified below where available.''
+
=== Major works ===
 +
The extant works of Aristotle are broken down according to the five categories in the ''[[Corpus Aristotelicum]]''. The titles are given in accordance with the standard set by the Revised Oxford Translation.<ref>Jonathan Barnes (ed.), ''The Complete Works of Aristotle'' (Princeton University Press, 1984).</ref> Not all of these works are considered genuine, but differ with respect to their connection to Aristotle, his associates and his views. Some, such as the ''Athenaion Politeia'' or the fragments of other ''politeia,'' are regarded by most scholars as products of Aristotle's "school" and compiled under his direction or supervision. Other works, such as ''On Colours,'' may have been products of Aristotle's successors at the Lyceum, for example, [[Theophrastus]] and [[Straton]]. Still others acquired Aristotle's name through similarities in doctrine or content, such as the ''De Plantis,'' possibly by [[Nicolaus of Damascus]]. A final category, omitted here, includes medieval [[palmistries]], [[astrological]], and [[magical]] texts whose connection to Aristotle is purely fanciful and self-promotional. Those that are seriously disputed are marked with an asterisk.
  
=== Major works ===
+
In several of the treatises, there are references to other works in the corpus. Based on such references, some scholars have suggested a possible chronological order for a number of Aristotle's writings. [[W.D. Ross]], for instance, suggested the following broad arrangement (which of course leaves out much):  ''Categories,'' ''Topics,'' ''Sophistici Elenchi,'' ''Analytics,'' ''Metaphysics Δ,'' the physical works, the ''Ethics,'' and the rest of the ''Metaphysics''.<ref>W.D. Ross, ''Aristotle's Metaphysics'' (1953).</ref> Many modern scholars, however, based simply on lack of evidence, are skeptical of such attempts to determine the chronological order of Aristotle's writings.<ref>Jonathan Barnes, "Life and Work," in ''The Cambridge Companion to Aristotle'' (1995) 18-22.</ref>
The extant works of Aristotle are broken down according to the five categories in the ''[[Corpus Aristotelicum]]''. Not all of these works are considered genuine, but differ with respect to their connection to Aristotle, his associates and his views. Some, such as the ''Athenaion Politeia'' or the fragments of other ''politeia'' are regarded by most scholars as products of Aristotle's "school" and compiled under his direction or supervision. Other works, such ''On Colours'' may have been products of Aristotle's successors at the Lyceum, e.g., [[Theophrastus]] and [[Straton]]. Still others acquired Aristotle's name through similarities in doctrine or content, such as the ''De Plantis,'' possibly by [[Nicolaus of Damascus]]. A final category, omitted here, includes medieval [[palmistries]], [[astrological]] and [[magical]] texts whose connection to Aristotle is purely fanciful and self-promotional. Those that are seriously disputed are marked with an asterisk.
 
  
 
==== Logical writings ====
 
==== Logical writings ====
 
* [[Organon]] (collected works on logic):
 
* [[Organon]] (collected works on logic):
 
** (1a) [[Categories (Aristotle)|Categories]] (or ''Categoriae'')
 
** (1a) [[Categories (Aristotle)|Categories]] (or ''Categoriae'')
** (16a) [[On Interpretation]] (or ''De Interpretatione'')
+
** (16a) [[De Interpretatione]] (or ''On Interpretation'')
 
** (24a) [[Prior Analytics]] (or ''Analytica Priora'')
 
** (24a) [[Prior Analytics]] (or ''Analytica Priora'')
 
** (71a) [[Posterior Analytics]] (or ''Analytica Posteriora'')
 
** (71a) [[Posterior Analytics]] (or ''Analytica Posteriora'')
 
** (100b) [[Topics (Aristotle)|Topics]] (or ''Topica'')
 
** (100b) [[Topics (Aristotle)|Topics]] (or ''Topica'')
** (164a) [[On Sophistical Refutations]] (or ''De Sophisticis Elenchis'')
+
** (164a) [[Sophistical Refutations]] (or ''De Sophisticis Elenchis'')
  
 
==== Physical and scientific writings ====
 
==== Physical and scientific writings ====
Line 155: Line 188:
 
* (314a) [[On Generation and Corruption]] (or ''De Generatione et Corruptione'')
 
* (314a) [[On Generation and Corruption]] (or ''De Generatione et Corruptione'')
 
* (338a) [[Meteorology (Aristotle)|Meteorology]] (or ''Meteorologica'')
 
* (338a) [[Meteorology (Aristotle)|Meteorology]] (or ''Meteorologica'')
* (391a) [[On the Cosmos]] (or ''De Mundo'', or ''On the Universe'') *
+
* (391a) [[On the Universe]] (or ''De Mundo'', or ''On the Cosmos'')*
 
* (402a) [[On the Soul]] (or ''De Anima'')
 
* (402a) [[On the Soul]] (or ''De Anima'')
* (436a) [[Little Physical Treatises]] (or ''Parva Naturalia''):
+
* (436a) [[Parva Naturalia]] (or ''Little Physical Treatises''):
** [[On Sense and the Sensible]] (or ''De Sensu et Sensibilibus'')
+
** [[Sense and Sensibilia (Aristotle)|Sense and Sensibilia]] (or ''De Sensu et Sensibilibus'')
** [[On Memory and Reminiscence]] (or ''De Memoria et Reminiscentia'')
+
** [[On Memory]] (or ''De Memoria et Reminiscentia'')
** [[On Sleep and Sleeplessness]] (or ''De Somno et Vigilia'')
+
** [[On Sleep]] (or ''De Somno et Vigilia'')
** [[On Dreams]] (or ''De Insomniis'') *
+
** [[On Dreams]] (or ''De Insomniis'')
** [[On Prophesying by Dreams]] (or ''De Divinatione per Somnum'')
+
** [[On Divination in Sleep]] (or ''De Divinatione per Somnum'')
** [[On Longevity and Shortness of Life]] (or ''De Longitudine et Brevitate Vitae'')
+
** [[On Length and Shortness of Life]] (or ''De Longitudine et Brevitate Vitae'')
** [[On Youth and Old Age]] (On Life and Death) (or ''De Juventute et Senectute'', ''De Vita et Morte'')
+
** [[On Youth, Old Age, Life and Death, and Respiration]] (or ''De Juventute et Senectute,'' ''De Vita et Morte,'' ''De Respiratione'')
** [[On Breathing]] (or ''De Respiratione'')
+
* (481a) [[On Breath]] (or ''De Spiritu'')*
* (481a) [[On Breath]] (or ''De Spiritu'') *
+
* (486a) [[History of Animals]] (or ''Historia Animalium'', or ''On the History of Animals,'' or ''Description of Animals'')
* (486a) [[History of Animals]] (or ''Historia Animalium'', or ''On the History of Animals'', or ''Description of Animals'')
+
* (639a) [[Parts of Animals]] (or ''De Partibus Animalium'')
* (639a) [[On the Parts of Animals]] (or ''De Partibus Animalium'')
+
* (698a) [[Movement of Animals]] (or ''De Motu Animalium'')
* (698a) [[On the Gait of Animals]] (or ''De Motu Animalium'', or ''On the Movement of Animals'')
+
* (704a) [[Progression of Animals]] (or ''De Incessu Animalium'')
* (704a) [[On the Progression of Animals]] (or ''De Incessu Animalium'')
+
* (715a) [[Generation of Animals]] (or ''De Generatione Animalium'')
* (715a) [[On the Generation of Animals]] (or ''De Generatione Animalium'')
+
* (791a) [[On Colors]] (or ''De Coloribus'')*
* (791a) [[On Colours]] (or ''De Coloribus'') *
+
* (800a) [[On Things Heard]] (or ''De audibilibus'')*
* (800a) ''[[De audibilibus]]''
+
* (805a) [[Physiognomics (Aristotle)|Physiognomics]] (or ''Physiognomonica'')*
* (805a) [[Physiognomics]] (or ''Physiognomonica'') *
+
* [[On Plants]] (or ''De Plantis'')*
* [[On Plants]] (or ''De Plantis'') *
+
* (830a) [[On Marvellous Things Heard]] (or ''De mirabilibus auscultationibus'')*
* (830a) [[On Marvellous Things Heard]] (or ''Mirabilibus Auscultationibus'', or ''On Things Heard'') *
+
* (847a) [[Mechanics (Aristotle)|Mechanics]] (or ''Mechanica'' or ''Mechanical Problems'')*
* (847a) [[Mechanical Problems]] (or ''Mechanica'') *
+
* (859a) [[Problems (Aristotle)|Problems]] (or ''Problemata'')
* (859a) [[Problems (Aristotle)|Problems]] (or ''Problemata'') *
+
* (968a) [[On Indivisible Lines]] (or ''De Lineis Insecabilibus'')*
* (968a) [[On Indivisible Lines]] (or ''De Lineis Insecabilibus'') *
+
* (973a) [[The Situations and Names of Winds]] (or ''Ventorum Situs'')*
* (973a) [[Situations and Names of Winds]] (or ''Ventorum Situs'') *
+
* (974a) [[On Melissus, Xenophanes, and Gorgias]] (or ''MXG'')* The section On Xenophanes starts at 977a13, the section On Gorgias starts at 979a11.
  
 
==== Metaphysical writings ====
 
==== Metaphysical writings ====
 
* (980a) [[Metaphysics (Aristotle)|Metaphysics]] (or ''Metaphysica'')
 
* (980a) [[Metaphysics (Aristotle)|Metaphysics]] (or ''Metaphysica'')
  
==== Ethical writings ====
+
==== Ethical & Political writings ====
* (1094a) [[Nicomachean Ethics]] (or ''Ethica Nicomachea'', or ''The Ethics'')
+
* (1094a) [[Nicomachean Ethics]] (or ''Ethica Nicomachea,'' or ''The Ethics'')
* (1181a) [[Great Ethics]] (or ''Magna Moralia'') *
+
* (1181a) [[Magna Moralia]] (or ''Great Ethics'')*
 
* (1214a) [[Eudemian Ethics]] (or ''Ethica Eudemia'')
 
* (1214a) [[Eudemian Ethics]] (or ''Ethica Eudemia'')
* (1249a) [[Virtues and Vices]] (or ''De Virtutibus et Vitiis Libellus'', ''Libellus de virtutibus'') *
+
* (1249a) [[On Virtues and Vices]] (or ''De Virtutibus et Vitiis Libellus,'' ''Libellus de virtutibus'')*
 
* (1252a) [[Politics (Aristotle)|Politics]] (or ''Politica'')
 
* (1252a) [[Politics (Aristotle)|Politics]] (or ''Politica'')
 
* (1343a) [[Economics (Aristotle)|Economics]] (or ''Oeconomica'')
 
* (1343a) [[Economics (Aristotle)|Economics]] (or ''Oeconomica'')
  
 
==== Aesthetic writings ====
 
==== Aesthetic writings ====
* (1354a) [[Rhetoric (Aristotle)|Rhetoric]] (or ''Ars Rhetorica'', or ''The Art of Rhetoric'' or ''Treatise on Rhetoric'')
+
* (1354a) [[Rhetoric (Aristotle)|Rhetoric]] (or ''Ars Rhetorica,'' or ''The Art of Rhetoric,'' or ''Treatise on Rhetoric'')
* [[Rhetoric to Alexander]] (or ''Rhetorica ad Alexandrum'') *
+
* [[Rhetoric to Alexander]] (or ''Rhetorica ad Alexandrum'')*
* (1447a) [[Poetics]] (or ''Ars Poetica'')
+
* (1447a) [[Poetics (Aristotle)|Poetics]] (or ''Ars Poetica'')
  
==== Writings absent from ''Corpus Aristotelicum'' ====
+
===Major current editions===
* The [[Constitution of the Athenians]] (or ''Athenaion Politeia'', or ''The Athenian Consitution'') *
+
* Princeton University Press: ''The Complete Works of Aristotle: The Revised Oxford Translation'' (2 Volume Set; Bollingen Series, Vol. LXXI, No. 2), edited by Jonathan Barnes. ISBN 978-0691016511 (the most complete recent translation of Aristotle's extant works, including a selection from the extant fragments)
* ''On [[Melissus of Samos|Melissus]]'', ''On [[Xenophanes]]'', and ''On [[Gorgias]]''. These are sometimes grouped together and called the "MXG" writings. They clearly are not written by Aristotle, and are believed to date from the [[fifth century]] AD. However, because they have frequently been attributed to him in the past, they are often included in compilations of his writings (for example, in the [[Loeb Classical Library]]).
+
* Oxford University Press: ''Clarendon Aristotle Series''.
 +
* Harvard University Press: ''Loeb Classical Library'' (hardbound; publishes in Greek, with English translations on facing pages)
 +
* Oxford Classical Texts (hardbound; Greek only)
  
=== Specific editions===
+
==Notes==
* [[Princeton University]] Press: ''The Complete Works of Aristotle: The Revised Oxford Translation'' (2 Volume Set; Bollingen Series, Vol. LXXI, No. 2), edited by [[Jonathan Barnes]] ISBN 0-691-09950-2 (The most complete recent translation of Aristotle's extant works)
+
<references/>
* [[University of Oxford|Oxford University]] Press: ''Clarendon Aristotle Series''.  [http://www.oup.com/us/catalog/general/series/ClarendonAristotleSeries/?view=usa Scholarly edition]
 
* [[Harvard University]] Press: ''[[Loeb Classical Library#Aristotle|Loeb Classical Library]]'' (hardbound; publishes in Greek, with English translations on facing pages)
 
  
==Named after Aristotle==
+
==References==
*[[Aristoteles (crater)|Aristoteles crater]] on the [[Moon]].
+
* Ackrill, J.L. ''Essays on Plato and Aristotle'', Oxford University Press, 2001. ISBN 0585128278.
*The [[Aristotle University of Thessaloniki]]
+
* Adler, Mortimer J. ''Aristotle for Everybody.'' New York, NY: Macmillan, 1978. ISBN 0025031007.
*Aristotle's Cockney legacy - The name of Aristotle, like that of [[J. Arthur Rank]], became a common expression in [[Cockney rhyming slang]].
+
* Bakalis Nikolaos. ''Handbook of Greek Philosophy: From Thales to the Stoics Analysis and Fragments.'' Trafford Publishing, 2005. ISBN 1412048435.
 +
* Barnes J. ''The Cambridge Companion to Aristotle.'' Cambridge University Press, 1995. ISBN 0521411335.
 +
* Bocheński, I.M. ''Ancient Formal Logic''. Amsterdam: North-Holland Publishing Company, 1951.
 +
* Bolotin, David. ''An Approach to Aristotle’s Physics: With Particular Attention to the Role of His Manner of Writing.'' Albany, NY: SUNY Press, 1998. ISBN 0585092052.
 +
* Burnyeat, M.F., et al. ''Notes on Book Zeta of Aristotle's Metaphysics.'' Oxford: Sub-faculty of Philosophy, 1979.
 +
* Chappell, V. "Aristotle's Conception of Matter," ''Journal of Philosophy'' 70 (1973): 679-696.
 +
* Code, Alan. "Potentiality in Aristotle's Science and Metaphysics," ''Pacific Philosophical Quarterly'' 76 (1995).
 +
* Durant, Will. ''The Story of Philosophy''. Simon & Schuster, Inc., 1926. ISBN 978-0671739164.
 +
* Frede, Michael. ''Essays in Ancient Philosophy.'' Minneapolis, MN: University of Minnesota Press, 1987. ISBN 0816612749.
 +
* Gill, Mary Louise. ''Aristotle on Substance: The Paradox of Unity.'' Princeton, NJ: Princeton University Press, 1989. ISBN 978-0691073347.
 +
* Guthrie, W.K.C. ''A History of Greek Philosophy.'' Cambridge University Press, 1981. ISBN 978-0521387606.
 +
* Halper, Edward C. ''One and Many in Aristotle's Metaphysics.'' Parmenides Publishing, 2007. ISBN 978-1930972216.
 +
* Irwin, Terence. ''Aristotle's First Principles''. New York, NY: Oxford University Press, 1990. ISBN 978-0198242901.
 +
* Jones, W.T. ''A History of Western Philosophy: The Classical Mind''. Wadsworth Publishing, 1969. ISBN 978-0155383128.
 +
* Jori, Alberto. ''Aristotle.'' Milano: Bruno Mondadori Editore, 2003. ISBN 8842497371.
 +
* Knight, Kelvin. ''Aristotelian Philosophy: Ethics and Politics from Aristotle to MacIntyre.'' Polity Press, 2007. ISBN 0745619762.
 +
* Lewis, Frank A. ''Substance and Predication in Aristotle''. Cambridge: Cambridge University Press, 1991. ISBN 0521391598.
 +
* Lloyd, G.E.R. ''Aristotle: The Growth and Structure of his Thought''. Cambridge: Cambridge University Press, 1968. ISBN 0521094569.
 +
* Lord, Carnes. ''Introduction to The Politics, by Aristotle.'' Chicago, IL: Chicago University Press, 1984.
 +
* Loux, Michael J. ''Primary Ousia: An Essay on Aristotle's Metaphysics Ζ and Η.'' Ithaca, NY: Cornell University Press, 1991. ISBN 0801425980.
 +
* Owen, G.E.L. "The Platonism of Aristotle," Proceedings of the British Academy 50 (1965): 125-150. Reprinted in J. Barnes, M. Schofield, and R.R.K. Sorabji (eds.), ''Articles on Aristotle,'' Vol 1. ''Science''. London: Duckworth (1975). 14-34
 +
* Pangle, Lorraine Smith. ''Aristotle and the Philosophy of Friendship''. Cambridge: Cambridge University Press, 2003. ISBN 0521817455.
 +
* Reeve, C.D.C. ''Substantial Knowledge: Aristotle's Metaphysics.'' Indianapolis, IN: Hackett, 2000. ISBN 0872205150.
 +
* Rose, Lynn E. ''Aristotle's Syllogistic.'' Springfield, IL: Charles C Thomas Publisher, 1968.
 +
* Ross, Sir David. ''Aristotle,'' 6th edition. London: Routledge, 1995. ISBN 9780415120685.
 +
* Ross, W.D. ''Aristotle's Metaphysicss''. Stilwell, KS: Digireads, 2006. ISBN 978-1420927498.
 +
* Scaltsas, T. ''Substances and Universals in Aristotle's Metaphysics''. Ithaca, NY: Cornell University Press, 1994. ISBN 0801430038.
 +
* Strauss, Leo. "On Aristotle's Politics," in ''The City and Man.'' Chicago, IL: University Of Chicago Press, 1978. ISBN 978-0226777016.
 +
* Taylor, Henry Osborn. "Chapter 3: Aristotle's Biology," ''Greek Biology and Medicine - 1922''. Ithica, NY:  Cornell University Library, 2009. ISBN 978-1112301230.
 +
* Veatch, Henry B. ''Aristotle: A Contemporary Appreciation''. Bloomington, IN: Indiana University Press, 1974. ISBN 0253308909.
 +
* Woods, M.J. ''Universals and Particular Forms in Aristotle's Metaphysics.'' Oxford Studies in Ancient Philosophy supplement, 1991.  
  
==References==
+
Note: This article incorporates material from [http://planetmath.org/?op=getobj&from=objects&id=5840 Aristotle] on [http://www.planetmath.org PlanetMath], which is licensed under [http://www.newworldencyclopedia.org/entry/New%20World%20Encyclopedia:Creative_Commons_CC-by-sa_3.0 Creative Commons CC-by-sa 3.0].
* Boche&#324;ski, I. M.: Ancient Formal Logic. North-Holland Publishing Company, Amsterdam, 1951.
 
* Rose, Lynn E.: Aristotle's Syllogistic. Charles C Thomas Publisher, Springfield, 1968.
 
  
 
==External links==
 
==External links==
{{Wikisource author}}
+
All links retrieved August 12, 2023.  
{{wikiquote}}
 
{{commons}}
 
 
 
*{{PerseusAuthor|Aristotle}}
 
 
 
*[http://www.gutenberg.org/author/Aristotle Works by Aristotle] from [[Project Gutenberg]]
 
*[http://Aristotle.thefreelibrary.com/ A brief biography and e-texts presented one chapter at a time]
 
*[http://www.utm.edu/research/iep/a/aristotl.htm The Internet Encyclopedia of Philosophy: Aristotle.], 2004.
 
*[http://www.virtuescience.com/nicomachean-ethics.html Nicomachean Ethics by Aristotle.]
 
*[http://uk.arxiv.org/abs/physics/0505172 Aristotle and Indian logic]
 
*O'Connor, J. John & Robertson, Edmund F., [http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Aristotle.html Aristotle], 2004.
 
*Taylor, Henry Osborn. [http://www.ancientlibrary.com/medicine/index.html ''Greek Biology and Medicine''] (1922) — Chapter 3 is devoted to  [http://www.ancientlibrary.com/medicine/0051.html "Aristotle's Biology"].
 
 
 
{{planetmath|id=5840|title=Aristotle}}
 
{{lived|b=384 B.C.E.|d=322 B.C.E.|key=Aristotle}}
 
  
[[Category:Aristotle]]
+
*{{gutenberg author | id=Aristotle | name=Aristotle}}.
[[Category:Ancient Greek philosophers]]
+
*[http://www-history.mcs.st-andrews.ac.uk/References/Aristotle.html References for Aristotle].
[[Category:Aristotelian philosophers]]
+
*{{PerseusAuthor|Aristotle}}.
[[Category:Ancient Greek mathematicians]]
+
*[http://www.fh-augsburg.de/%7Eharsch/graeca/Chronologia/S_ante04/Aristoteles/ari_intr.html Some of Aristotle's works: Analytica Priora & Posteriora, Poetics (All in Greek)].
[[Category:Empiricists]]
+
*Stanford Encyclopedia of Philosophy articles on Aristotle's works:
[[Category:Rhetoric]]
+
**"[http://setis.library.usyd.edu.au/stanford/entries/aristotle-biology/ Biology]"
 +
**"[http://setis.library.usyd.edu.au/stanford/entries/aristotle-causality/ Causality]"
 +
**"[http://setis.library.usyd.edu.au/stanford/entries/aristotle-ethics/ Ethics]"
 +
**"[http://setis.library.usyd.edu.au/stanford/entries/aristotle-logic/ Logic]"
 +
**"[http://setis.library.usyd.edu.au/stanford/entries/aristotle-mathematics/ Mathematics]"
 +
**"[http://setis.library.usyd.edu.au/stanford/entries/aristotle-metaphysics/ Metaphysics]"
 +
**"[http://setis.library.usyd.edu.au/stanford/entries/aristotle-natphil/ Natural Philosophy]"
 +
**"[http://setis.library.usyd.edu.au/stanford/entries/aristotle-politics/ Political Theory]"
 +
**"[http://setis.library.usyd.edu.au/stanford/entries/aristotle-psychology/ Psychology]"
 +
**"[http://setis.library.usyd.edu.au/stanford/entries/aristotle-rhetoric/ Rhetoric]"
 +
*Catholic Encyclopedia: "[http://www.newadvent.org/cathen/01713a.htm Aristotle]"
 +
*[http://aristotle.thefreelibrary.com/ Aristotle] at the Free Library.
  
 +
===General philosophy sources===
 +
*[http://plato.stanford.edu/ Stanford Encyclopedia of Philosophy].
 +
*[http://www.iep.utm.edu/ The Internet Encyclopedia of Philosophy].
 +
*[http://www.bu.edu/wcp/PaidArch.html Paideia Project Online].
 +
*[http://www.gutenberg.org/ Project Gutenberg].
 +
 +
[[category:Philosophy and religion]]
 +
[[Category:philosophy]]
  
[[category:philosophy and religion]]
+
{{Philosophy navigation}}
 +
{{Ancient Greece}}
 +
{{Logic}}
  
{{credit|23533789}}
+
{{credit|148137163}}

Latest revision as of 06:30, 12 August 2023

Western philosophy
Ancient philosophy
Aristoteles Louvre.jpg
Name: Aristotle
Birth: 384 B.C.E.
Death: March 7, 322 B.C.E.
School/tradition: Inspired the Peripatetic school and tradition of Aristotelianism
Main interests
Politics, Metaphysics, Science, Logic, Ethics
Notable ideas
The Golden mean, Reason, Logic, Biology, Passion
Influences Influenced
Parmenides, Socrates, Plato Alexander the Great, Al-Farabi, Avicenna, Averroes, Albertus Magnus, Copernicus, Galileo Galilei, Ptolemy, St. Thomas Aquinas, and most of Islamic philosophy, Christian philosophy, Western philosophy and Science in general

Aristotle (Greek: Ἀριστοτέλης Aristotélēs) (384 B.C.E. – March 7, 322 B.C.E.) was a Greek philosopher, a student of Plato, and teacher of Alexander the Great. He wrote on diverse subjects, including physics, metaphysics, poetry (including theater), logic, rhetoric, politics, government, ethics, biology, and zoology. Along with Socrates and Plato, he was among the most influential of the ancient Greek philosophers, as they transformed Presocratic Greek philosophy into the foundations of Western philosophy as it is known today. Most researchers credit Plato and Aristotle with founding two of the most important schools of ancient philosophy, along with Stoicism and Epicureanism.

Aristotle's philosophy made a dramatic impact on both Western and Islamic philosophy. The beginning of "modern" philosophy in the Western world is typically located at the transition from medieval, Aristotelian philosophy to mechanistic, Cartesian philosophy in the sixteenth and seventeenth centuries. Yet, even the new philosophy continued to put debates in largely Aristotelian terms, or to wrestle with Aristotelian views. Today, there are avowed Aristotelians in many areas of contemporary philosophy, including ethics and metaphysics.

Given the volume of Aristotle's work, it is not possible to adequately summarize his views in anything less than a book. This article focuses on the aspects of his views that have been most influential in the history of philosophy.

Life

Aristotle was born in Stageira, Chalcidice, in 384 B.C.E. His father was Nicomachus, who became physician to King Amyntas of Macedon. At about the age of eighteen, he went to Athens to continue his education at Plato's Academy. Aristotle remained at the academy for nearly twenty years, not leaving until after Plato's death in 347 B.C.E. He then traveled with Xenocrates to the court of Hermias of Atarneus in Asia Minor. While in Asia, Aristotle traveled with Theophrastus to the island of Lesbos, where together they researched the botany and zoology of the island. Aristotle married Hermias' daughter (or niece) Pythias. She bore him a daughter, whom they named Pythias. Soon after Hermias' death, Aristotle was invited by Philip of Macedon to become tutor to Alexander the Great.

After spending several years tutoring the young Alexander, Aristotle returned to Athens. By 334 B.C.E., he established his own school there, known as the Lyceum. Aristotle conducted courses at the school for the next eleven years. While in Athens, his wife Pythias died, and Aristotle became involved with Herpyllis of Stageira, who bore him a son that he named after his father, Nicomachus.

It is during this period that Aristotle is believed to have composed many of his works. Aristotle wrote many dialogues, only fragments of which survived. The works that have survived are in treatise form and were not, for the most part, intended for widespread publication, and are generally thought to be mere lecture aids for his students.

Aristotle not only studied almost every subject possible at the time, but made significant contributions to most of them. In physical science, Aristotle studied anatomy, astronomy, economics, embryology, geography, geology, meteorology, physics, and zoology. In philosophy, he wrote on aesthetics, ethics, government, logic, metaphysics, politics, psychology, rhetoric, and theology. He also studied education, foreign customs, literature, and poetry. Because his discussions typically begin with a consideration of existing views, his combined works constitute a virtual encyclopedia of Greek knowledge.

Upon Alexander's death in 323 B.C.E., anti-Macedonian sentiment in Athens once again flared. Having never made a secret of his Macedonian roots, Aristotle fled the city to his mother's family estate in Chalcis, explaining, "I will not allow the Athenians to sin twice against philosophy."[1] However, he died there of natural causes within the year.

Methodology

Plato (left) and Aristotle (right), a detail of The School of Athens, a fresco by Raphael. Aristotle gestures to the earth, representing his belief in knowledge through empirical observation and experience, while holding a copy of his Nicomachean Ethics in his hand, whilst Plato gestures to the heavens, representing his belief in The Forms.

Both Plato and Aristotle regard philosophy as concerning universal truths. Roughly speaking, however, Aristotle found the universal truths by considering particular things, which he called the essence of things, while Plato finds that the universal exists apart from particular things, and is related to them as their prototype or exemplar. For Aristotle, therefore, philosophic method implies the ascent from the study of particular phenomena to the knowledge of essences, while for Plato philosophic method means the descent from a knowledge of universal ideas to a contemplation of particular imitations of those ideas (compare the metaphor of the line in the Republic).

It is, therefore, unsurprising that Aristotle saw philosophy as encompassing many disciplines which today are considered part of natural science (such as biology and astronomy). Yet, Aristotle would have resisted the over-simplifying description of natural science as based entirely in observation. After all, all data requires some interpretation, and much of Aristotle's work attempts to provide a framework for interpretation.

Logic

Aristotle is, without question, the most important logician in history. He deserves this title for two main reasons: (1) He was the first to consider the systematization of inferences as a discipline in itself (it would not be an exaggeration to say that he invented logic), and (2) his logical system was the dominant one for approximately 2000 years. Kant famously claimed that nothing significant had been added to logic since Aristotle, and concluded that it was one of the few disciplines that was finished. The work of mathematicians such as Boole and Frege in the nineteenth century showed that Kant was wrong in his estimation, but even contemporary logicians hold Aristotle in high regard.

Central to Aristotle's theory was the claim that all arguments could be reduced to a simple form, called a "syllogism." A syllogism was a set of three statements, the third of which (the conclusion) was necessarily true if the first two (the premises) were. Aristotle thought that the basic statements were of one of four forms:

  1. All X's are Y's
  2. No X's are Y's
  3. Some X's are Y's
  4. Some X's are not Y's

Aristotle's main insight, the insight that more or less began logic as a proper discipline, was that whether an inference was successful could depend on purely formal features of the argument. For instance, consider the following two arguments:

  1. All cats are animals
  2. All animals are made of cells
  3. Therefore, all cats are made of cells

and:

  1. All ducks are birds
  2. All birds have feathers
  3. Therefore, all ducks have feathers

The particular substantive words differ in these two arguments. Nevertheless, they have something in common: a certain structure. On reflection, it becomes clear that any argument with this structure will be one where the truth of the conclusion is guaranteed by that of the premises.

Metaphysics

As with logic, Aristotle is the first to have treated metaphysics as a distinct discipline (though, more than in the case of logic, other philosophers has discussed the same specific issues). Indeed, the very word "metaphysics" stems from the ordering of Aristotle's writing (it was the book prior to his Physics).

Causality

Aristotle distinguishes four types of cause: Material, formal, efficient, and final. His notion of efficient causation is closest to our contemporary notion of causation. To avoid confusion, it is helpful to think of the division as one of different types of explanations of a thing's being what it is.

The material cause is that from which a thing comes into existence as from its parts, constituents, substratum or materials. This reduces the explanation of causes to the parts (factors, elements, constituents, ingredients) forming the whole (system, structure, compound, complex, composite, or combination), a relationship known as the part-whole causation. An example of a material cause would be the marble in a carved statue, or the organs of an animal.

The formal cause argues what a thing is, that any thing is determined by the definition, form, pattern, essence, whole, synthesis, or archetype. It embraces the account of causes in terms of fundamental principles or general laws, as the whole (that is, macrostructure) is the cause of its parts, a relationship known as the whole-part causation. An example of a formal cause might be the shape of the carved statue, a shape that other particular statues could also take, or the arrangement of organs in an animal.

Aristotle

The efficient (or "moving") cause is what we might today most naturally describe as the cause: the agent or force that brought about the thing, with its particular matter and form. This cause might be either internal to the thing, or external to it. An example of an efficient cause might be the artist who carved the statue, or the animal's own ability to grow.

The final cause is that for the sake of which a thing exists or is done, including both purposeful and instrumental actions and activities. The final cause, or telos, is the purpose or end that something is supposed to serve, or it is that from which and that to which the change is. This also covers modern ideas of mental causation involving such psychological causes as volition, need, motivation, or motives, rational, irrational, ethical, all that gives purpose to behavior. The best examples of final causes are the functions of animals or organs: for instance, the final cause of an eye is sight (teleology).

Additionally, things can be causes of one another, causing each other reciprocally, as hard work causes fitness and vice versa, although not in the same way or function, the one is as the beginning of change, the other as the goal. (Thus, Aristotle first suggested a reciprocal or circular causality as a relation of mutual dependence or influence of cause upon effect.) Moreover, Aristotle indicated that the same thing can be the cause of contrary effects; its presence and absence may result in different outcomes. For example, a certain food may be the cause of health in one person, and sickness in another.

Substance, matter, and form

Aristotelian metaphysics discusses particular objects using two related distinctions. The first distinction is that between substances and "accidents" (the latter being "what is said of" a thing). For instance, a cat is a substance, and one can say of a cat that it is gray, or small. But the greyness or smallness of the cat belong to a different category of being—they are features of the cat. They are, in some sense, dependent for their existence on the cat.

Aristotle also sees entities as constituted by a certain combination of matter and form. This is a distinction which can be made at many levels. A cat, for instance, has a set of organs (heart, skin, bones, and so on) as its matter, and these are arranged into a certain form. Yet, each of these organs in turn has a certain matter and form, the matter being the flesh or tissues, and the form being their arrangement. Such distinctions continue all the way down to the most basic elements.

Aristotle sometimes speaks as though substance is to be identified with the matter of particular objects, but more often describes substances as individuals composed of some matter and form. He also appears to have thought that biological organisms were the paradigm cases of substances.

Universals and particulars

Aristotle's predecessor, Plato, argued that all sensible objects are related to some universal entity, or "form." For instance, when people recognize some particular book for what it is, they consider it as an instance of a general type (books in general). This is a fundamental feature of human experience, and Plato was deeply impressed by it. People don't encounter general things in their normal experience, only particular things—so how could people have experience of particulars as being of some universal type?

Plato's answer was that these forms are separate and more fundamental parts of reality, existing "outside" the realm of sensible objects. He claimed (perhaps most famously in the Phaedo) that people must have encountered these forms prior to their birth into the sensible realm. The objects people normally experience are compared (in the Republic) with shadows of the forms. Whatever else this means, it shows that Plato thought that the forms were ontologically more basic than particular objects. Because of this, he thought that forms could exist even if there were no particular objects that were related to that form. Or, to put the point more technically, Plato believed that some universals were "uninstantiated."

Aristotle disagreed with Plato on this point, arguing that all universals are instantiated. In other words, there are no universals that are unattached to existing things. According to Aristotle, if a universal exists, either as a particular or a relation, then there must have been, must be currently, or must be in the future, something on which the universal can be predicated.

In addition, Aristotle disagreed with Plato about the location of universals. As Plato spoke of a separate world of the forms, a location where all universal forms subsist, Aristotle maintained that universals exist within each thing on which each universal is predicated. So, according to Aristotle, the form of apple exists within each apple, rather than in the world of the forms. His view seems to have been that the most fundamental level of reality is just what people naturally take it to be: The particular objects people encounter in everyday experience. Moreover, the main way of becoming informed about the nature of reality is through sensory experience.

The basic contrast described here is one that echoed throughout the history of Western philosophy, often described as the contrast between rationalism and empiricism.

The five elements

Aristotle, developing one of the main topics of the Presocratics, believed that the world was built up of five basic elements. The building up consisted in the combining of the elements into various forms. The elements were:

  • Fire, which is hot and dry
  • Earth, which is cold and dry
  • Air, which is hot and wet
  • Water, which is cold and wet
  • Aether, which is the divine substance that makes up the heavenly spheres and heavenly bodies (stars and planets)

Each of the four earthly elements has its natural place; the earth at the center of the universe, then water, then air, then fire. When they are out of their natural place they have natural motion, requiring no external cause, which is towards that place; so bodies sink in water, air bubbles up, rain falls, flame rises in air. The heavenly element has perpetual circular motion.

This view was key to Aristotle's explanation of celestial motion and of gravity. It is often given as a paradigm of teleological explanation, and became the dominant scientific view in Europe at the end of the middle ages.

Philosophy of mind

Aristotle's major discussion of the nature of the mind appears in De Anima. His concern is with the "principle of motion" of living entities. He distinguishes three types of soul:

  1. Nutritive
  2. Sensory
  3. Thinking

All plants and animals are capable of absorbing nutrition, so Aristotle held that they all have a nutritive soul. Yet, not all are capable of perceiving their surroundings. Aristotle thought this was indicated by a lack of movement, holding that stationary animals cannot perceive. He, therefore, concluded that the presence of this type of soul was what distinguished plants from animals. Finally, Aristotle held that what was distinctive of humans is their ability to think, and held that this requires yet another principle of motion, the thinking soul.

Most of Aristotle's discussion of the soul is "naturalistic"—that is, it appears to only describe entities whose existence is already countenanced in the natural sciences (primarily, physics). This is especially brought out by his claim that the soul seems to be the form of the organism. Because of this, some contemporary advocates of functionalism in the philosophy of mind (just as Hilary Putnam) have cited Aristotle as a predecessor.

In the De Anima discussion, however, there are places where Aristotle seems to suggest that the rational soul requires something beyond the body. His remarks are very condensed, and so incredibly difficult to interpret, but these few remarks were the focus of Christian commentators who attempted to reconcile Aristotelian philosophy with Christian doctrine.

Practical philosophy

Ethics

Aristotle's main treatise on ethics is the Nichomachean Ethics, in which he gives the first systematic articulation of what is now called virtue ethics. Aristotle considered ethics to be a practical science, that is, one mastered by doing rather than merely reasoning. This stood in sharp contrast to the views of Plato. Plato held that knowledge of the good was accomplished through contemplation, much in the way in which mathematical understanding is achieved through pure thought.

By contrast, Aristotle noted that knowing what the virtuous thing to do was, in any particular instance, was a matter of evaluating the many particular factors involved. Because of this, he insisted, it is not possible to formulate some non-trivial rule that, when followed, will always lead the virtuous activity. Instead, a truly virtuous person is one who, through habituation, has developed a non-codifiable ability to judge the situation and act accordingly.

This view ties in with what is perhaps Aristotle's best-known contribution to ethical theory: The so-called "doctrine of the mean." He held that all the virtues were a matter of a balance between two extremes. For instance, courage is a state of character in between cowardice and brashness. Likewise, temperance is a state of character in between dullness and hot-headedness. Exactly where in between the two extremes the virtuous state lies is something that cannot be stated in any abstract formulation.

Also significant here is Aristotle's view (one also held by Plato) that the virtues are inter-dependent. For instance, Aristotle held that it is not possible to be courageous if one is completely unjust. Yet, such interrelations are also too complex to be meaningfully captured in any simple rule.

Aristotle taught that virtue has to do with the proper function of a thing. An eye is only a good eye in so much as it can see, because the proper function of an eye is sight. Aristotle reasoned that humans must have a function that sets them apart from other animals, and that this function must be an activity of the soul, in particular, its rational part. This function essentially involves activity, and performing the function well is what constitutes human happiness.

Politics

Did you know?
Aristotle believed that human nature is inherently political since individuals cannot achieve happiness without forming states (political bodies) because the individual in isolation is not self-sufficient

Aristotle is famous for his statement that "man is by nature a political animal." He held that happiness involves self-sufficiency and that individual people are not self-sufficient, so the desire for happiness necessarily leads people to form political bodies. This view stands in contrast to views of politics that hold that the formation of the state or city-state is somehow a deviation from more natural tendencies.

Like Plato, Aristotle believed that the ideal state would involve a ruling class. Whereas Plato believed that the philosophers should rule, Aristotle held that the rulers should be all those capable of virtue. Unfortunately, Aristotle believed that this was a fairly restricted group, for he held that neither women, slaves, nor labor-class citizens were capable of becoming virtuous.

For Aristotle, this ideal state would be one which would allow the greatest habituation of virtue and the greatest amount of the activity of contemplation, for just these things amount to human happiness (as he had argued in his ethical works).

The loss of his works

Though Aristotle wrote many elegant treatises and dialogues (Cicero described his literary style as "a river of gold"),[2] the vast majority of his writings are now lost, while the literary character of those that remain is disputed. Aristotle's works were lost and rediscovered several times, and it is believed that only about one fifth of his original works have survived through the time of the Roman Empire.

After the Roman period, what remained of Aristotle's works were by and large lost to the West. They were preserved in the East by various Muslim scholars and philosophers, many of whom wrote extensive commentaries on his works. Aristotle lay at the foundation of the falsafa movement in Islamic philosophy, stimulating the thought of Al-Farabi, Ibn Sina, Ibn Rushd, and others.

As the influence of the falsafa grew in the West, in part due to Gerard of Cremona's translations and the spread of Averroism, the demand for Aristotle's works grew. William of Moerbeke translated a number of them into Latin. When Thomas Aquinas wrote his theology, working from Moerbeke's translations, the demand for Aristotle's writings grew and the Greek manuscripts returned to the West, stimulating a revival of Aristotelianism in Europe.

Legacy

It is the opinion of many that Aristotle's system of thought remains the most marvelous and influential one ever put together by any single mind. According to historian Will Durant, no other philosopher has contributed so much to the enlightenment of the world.[3] He single-handedly began the systematic treatment of Logic, Biology, and Psychology.

Aristotle is referred to as "The Philosopher" by Scholastic thinkers like Thomas Aquinas (for instance, Summa Theologica, Part I, Question 3). These thinkers blended Aristotelian philosophy with Christianity, bringing the thought of Ancient Greece into the Middle Ages. The medieval English poet Chaucer describes his student as being happy by having

At his bedded hed

Twenty books clothed in blake or red,

Of Aristotle and his philosophie (Chaucer).

The Italian poet Dante says of Aristotle, in the first circles of hell,

I saw the Master there of those who know,

Amid the philosophic family,
By all admired, and by all reverenced;
There Plato too I saw, and Socrates,

Who stood beside him closer than the rest (Dante, The Divine Comedy)

Nearly all the major philosophers in the sixteenth, seventeenth, and eighteenth centuries felt impelled to address Aristotle's works. The French philosopher Descartes cast his philosophy (in the Meditations of 1641) in terms of moving away from the senses as a basis for a scientific understanding of the world. The great Jewish philosopher Spinoza argued in his Ethics directly against the Aristotlean method of understanding the operations of nature in terms of final causes. Leibniz often described his own philosophy as an attempt to bring together the insights of Plato and Aristotle. Kant adopted Aristotle's use of the form/matter distinction in describing the nature of representations—for instance, in describing space and time as "forms" of intuition.

Bibliography

Major works

The extant works of Aristotle are broken down according to the five categories in the Corpus Aristotelicum. The titles are given in accordance with the standard set by the Revised Oxford Translation.[4] Not all of these works are considered genuine, but differ with respect to their connection to Aristotle, his associates and his views. Some, such as the Athenaion Politeia or the fragments of other politeia, are regarded by most scholars as products of Aristotle's "school" and compiled under his direction or supervision. Other works, such as On Colours, may have been products of Aristotle's successors at the Lyceum, for example, Theophrastus and Straton. Still others acquired Aristotle's name through similarities in doctrine or content, such as the De Plantis, possibly by Nicolaus of Damascus. A final category, omitted here, includes medieval palmistries, astrological, and magical texts whose connection to Aristotle is purely fanciful and self-promotional. Those that are seriously disputed are marked with an asterisk.

In several of the treatises, there are references to other works in the corpus. Based on such references, some scholars have suggested a possible chronological order for a number of Aristotle's writings. W.D. Ross, for instance, suggested the following broad arrangement (which of course leaves out much): Categories, Topics, Sophistici Elenchi, Analytics, Metaphysics Δ, the physical works, the Ethics, and the rest of the Metaphysics.[5] Many modern scholars, however, based simply on lack of evidence, are skeptical of such attempts to determine the chronological order of Aristotle's writings.[6]

Logical writings

  • Organon (collected works on logic):
    • (1a) Categories (or Categoriae)
    • (16a) De Interpretatione (or On Interpretation)
    • (24a) Prior Analytics (or Analytica Priora)
    • (71a) Posterior Analytics (or Analytica Posteriora)
    • (100b) Topics (or Topica)
    • (164a) Sophistical Refutations (or De Sophisticis Elenchis)

Physical and scientific writings

  • (184a) Physics (or Physica)
  • (268a) On the Heavens (or De Caelo)
  • (314a) On Generation and Corruption (or De Generatione et Corruptione)
  • (338a) Meteorology (or Meteorologica)
  • (391a) On the Universe (or De Mundo, or On the Cosmos)*
  • (402a) On the Soul (or De Anima)
  • (436a) Parva Naturalia (or Little Physical Treatises):
    • Sense and Sensibilia (or De Sensu et Sensibilibus)
    • On Memory (or De Memoria et Reminiscentia)
    • On Sleep (or De Somno et Vigilia)
    • On Dreams (or De Insomniis)
    • On Divination in Sleep (or De Divinatione per Somnum)
    • On Length and Shortness of Life (or De Longitudine et Brevitate Vitae)
    • On Youth, Old Age, Life and Death, and Respiration (or De Juventute et Senectute, De Vita et Morte, De Respiratione)
  • (481a) On Breath (or De Spiritu)*
  • (486a) History of Animals (or Historia Animalium, or On the History of Animals, or Description of Animals)
  • (639a) Parts of Animals (or De Partibus Animalium)
  • (698a) Movement of Animals (or De Motu Animalium)
  • (704a) Progression of Animals (or De Incessu Animalium)
  • (715a) Generation of Animals (or De Generatione Animalium)
  • (791a) On Colors (or De Coloribus)*
  • (800a) On Things Heard (or De audibilibus)*
  • (805a) Physiognomics (or Physiognomonica)*
  • On Plants (or De Plantis)*
  • (830a) On Marvellous Things Heard (or De mirabilibus auscultationibus)*
  • (847a) Mechanics (or Mechanica or Mechanical Problems)*
  • (859a) Problems (or Problemata)
  • (968a) On Indivisible Lines (or De Lineis Insecabilibus)*
  • (973a) The Situations and Names of Winds (or Ventorum Situs)*
  • (974a) On Melissus, Xenophanes, and Gorgias (or MXG)* The section On Xenophanes starts at 977a13, the section On Gorgias starts at 979a11.

Metaphysical writings

  • (980a) Metaphysics (or Metaphysica)

Ethical & Political writings

  • (1094a) Nicomachean Ethics (or Ethica Nicomachea, or The Ethics)
  • (1181a) Magna Moralia (or Great Ethics)*
  • (1214a) Eudemian Ethics (or Ethica Eudemia)
  • (1249a) On Virtues and Vices (or De Virtutibus et Vitiis Libellus, Libellus de virtutibus)*
  • (1252a) Politics (or Politica)
  • (1343a) Economics (or Oeconomica)

Aesthetic writings

  • (1354a) Rhetoric (or Ars Rhetorica, or The Art of Rhetoric, or Treatise on Rhetoric)
  • Rhetoric to Alexander (or Rhetorica ad Alexandrum)*
  • (1447a) Poetics (or Ars Poetica)

Major current editions

  • Princeton University Press: The Complete Works of Aristotle: The Revised Oxford Translation (2 Volume Set; Bollingen Series, Vol. LXXI, No. 2), edited by Jonathan Barnes. ISBN 978-0691016511 (the most complete recent translation of Aristotle's extant works, including a selection from the extant fragments)
  • Oxford University Press: Clarendon Aristotle Series.
  • Harvard University Press: Loeb Classical Library (hardbound; publishes in Greek, with English translations on facing pages)
  • Oxford Classical Texts (hardbound; Greek only)

Notes

  1. W.T. Jones, The Classical Mind: A History of Western Philosophy (Harcourt Brace Jovanovich, 1980), 216.
  2. Marcus Tullius Cicero, Flumen orationis aureum fundens Aristoteles. Retrieved January 25, 2007.
  3. Will Durant, The Story of Philosophy (Simon & Schuster, Inc., 1926, ISBN 9780671739164), 92.
  4. Jonathan Barnes (ed.), The Complete Works of Aristotle (Princeton University Press, 1984).
  5. W.D. Ross, Aristotle's Metaphysics (1953).
  6. Jonathan Barnes, "Life and Work," in The Cambridge Companion to Aristotle (1995) 18-22.

References
ISBN links support NWE through referral fees

  • Ackrill, J.L. Essays on Plato and Aristotle, Oxford University Press, 2001. ISBN 0585128278.
  • Adler, Mortimer J. Aristotle for Everybody. New York, NY: Macmillan, 1978. ISBN 0025031007.
  • Bakalis Nikolaos. Handbook of Greek Philosophy: From Thales to the Stoics Analysis and Fragments. Trafford Publishing, 2005. ISBN 1412048435.
  • Barnes J. The Cambridge Companion to Aristotle. Cambridge University Press, 1995. ISBN 0521411335.
  • Bocheński, I.M. Ancient Formal Logic. Amsterdam: North-Holland Publishing Company, 1951.
  • Bolotin, David. An Approach to Aristotle’s Physics: With Particular Attention to the Role of His Manner of Writing. Albany, NY: SUNY Press, 1998. ISBN 0585092052.
  • Burnyeat, M.F., et al. Notes on Book Zeta of Aristotle's Metaphysics. Oxford: Sub-faculty of Philosophy, 1979.
  • Chappell, V. "Aristotle's Conception of Matter," Journal of Philosophy 70 (1973): 679-696.
  • Code, Alan. "Potentiality in Aristotle's Science and Metaphysics," Pacific Philosophical Quarterly 76 (1995).
  • Durant, Will. The Story of Philosophy. Simon & Schuster, Inc., 1926. ISBN 978-0671739164.
  • Frede, Michael. Essays in Ancient Philosophy. Minneapolis, MN: University of Minnesota Press, 1987. ISBN 0816612749.
  • Gill, Mary Louise. Aristotle on Substance: The Paradox of Unity. Princeton, NJ: Princeton University Press, 1989. ISBN 978-0691073347.
  • Guthrie, W.K.C. A History of Greek Philosophy. Cambridge University Press, 1981. ISBN 978-0521387606.
  • Halper, Edward C. One and Many in Aristotle's Metaphysics. Parmenides Publishing, 2007. ISBN 978-1930972216.
  • Irwin, Terence. Aristotle's First Principles. New York, NY: Oxford University Press, 1990. ISBN 978-0198242901.
  • Jones, W.T. A History of Western Philosophy: The Classical Mind. Wadsworth Publishing, 1969. ISBN 978-0155383128.
  • Jori, Alberto. Aristotle. Milano: Bruno Mondadori Editore, 2003. ISBN 8842497371.
  • Knight, Kelvin. Aristotelian Philosophy: Ethics and Politics from Aristotle to MacIntyre. Polity Press, 2007. ISBN 0745619762.
  • Lewis, Frank A. Substance and Predication in Aristotle. Cambridge: Cambridge University Press, 1991. ISBN 0521391598.
  • Lloyd, G.E.R. Aristotle: The Growth and Structure of his Thought. Cambridge: Cambridge University Press, 1968. ISBN 0521094569.
  • Lord, Carnes. Introduction to The Politics, by Aristotle. Chicago, IL: Chicago University Press, 1984.
  • Loux, Michael J. Primary Ousia: An Essay on Aristotle's Metaphysics Ζ and Η. Ithaca, NY: Cornell University Press, 1991. ISBN 0801425980.
  • Owen, G.E.L. "The Platonism of Aristotle," Proceedings of the British Academy 50 (1965): 125-150. Reprinted in J. Barnes, M. Schofield, and R.R.K. Sorabji (eds.), Articles on Aristotle, Vol 1. Science. London: Duckworth (1975). 14-34
  • Pangle, Lorraine Smith. Aristotle and the Philosophy of Friendship. Cambridge: Cambridge University Press, 2003. ISBN 0521817455.
  • Reeve, C.D.C. Substantial Knowledge: Aristotle's Metaphysics. Indianapolis, IN: Hackett, 2000. ISBN 0872205150.
  • Rose, Lynn E. Aristotle's Syllogistic. Springfield, IL: Charles C Thomas Publisher, 1968.
  • Ross, Sir David. Aristotle, 6th edition. London: Routledge, 1995. ISBN 9780415120685.
  • Ross, W.D. Aristotle's Metaphysicss. Stilwell, KS: Digireads, 2006. ISBN 978-1420927498.
  • Scaltsas, T. Substances and Universals in Aristotle's Metaphysics. Ithaca, NY: Cornell University Press, 1994. ISBN 0801430038.
  • Strauss, Leo. "On Aristotle's Politics," in The City and Man. Chicago, IL: University Of Chicago Press, 1978. ISBN 978-0226777016.
  • Taylor, Henry Osborn. "Chapter 3: Aristotle's Biology," Greek Biology and Medicine - 1922. Ithica, NY: Cornell University Library, 2009. ISBN 978-1112301230.
  • Veatch, Henry B. Aristotle: A Contemporary Appreciation. Bloomington, IN: Indiana University Press, 1974. ISBN 0253308909.
  • Woods, M.J. Universals and Particular Forms in Aristotle's Metaphysics. Oxford Studies in Ancient Philosophy supplement, 1991.

Note: This article incorporates material from Aristotle on PlanetMath, which is licensed under Creative Commons CC-by-sa 3.0.

External links

All links retrieved August 12, 2023.

General philosophy sources


Credits

New World Encyclopedia writers and editors rewrote and completed the Wikipedia article in accordance with New World Encyclopedia standards. This article abides by terms of the Creative Commons CC-by-sa 3.0 License (CC-by-sa), which may be used and disseminated with proper attribution. Credit is due under the terms of this license that can reference both the New World Encyclopedia contributors and the selfless volunteer contributors of the Wikimedia Foundation. To cite this article click here for a list of acceptable citing formats.The history of earlier contributions by wikipedians is accessible to researchers here:

The history of this article since it was imported to New World Encyclopedia:

Note: Some restrictions may apply to use of individual images which are separately licensed.