94-567: Aristotle ( Attic Greek : Ἀριστοτέλης , romanized: Aristotélēs ; 384–322 BC) was an Ancient Greek philosopher and polymath . His writings cover a broad range of subjects spanning the natural sciences , philosophy , linguistics , economics , politics , psychology , and the arts . As the founder of the Peripatetic school of philosophy in the Lyceum in Athens , he began
188-411: A final cause or end. Then Aristotle proceeds and concludes that the actuality is prior to potentiality in formula, in time and in substantiality. With this definition of the particular substance (i.e., matter and form), Aristotle tries to solve the problem of the unity of the beings, for example, "what is it that makes a man one"? Since, according to Plato there are two Ideas: animal and biped, how then
282-572: A gymnasium and a colonnade ( peripatos ), from which the school acquired the name Peripatetic . Aristotle conducted courses and research at the school for the next twelve years. He often lectured small groups of distinguished students and, along with some of them, such as Theophrastus , Eudemus , and Aristoxenus , Aristotle built a large library which included manuscripts, maps, and museum objects. While in Athens, his wife Pythias died and Aristotle became involved with Herpyllis of Stagira. They had
376-558: A daughter whom they also named Pythias. In 343/42 BC, Aristotle was invited to Pella by Philip II of Macedon in order to become the tutor to his thirteen-year-old son Alexander ; a choice perhaps influenced by the relationship of Aristotle's family with the Macedonian dynasty. Aristotle taught Alexander at the private school of Mieza , in the gardens of the Nymphs , the royal estate near Pella. Alexander's education probably included
470-434: A fertilized hen's egg of a suitable stage and opens it to see the embryo's heart beating inside. Instead, he practiced a different style of science: systematically gathering data, discovering patterns common to whole groups of animals, and inferring possible causal explanations from these. This style is common in modern biology when large amounts of data become available in a new field, such as genomics . It does not result in
564-494: A fluid such as air. In this system, heavy bodies in steady fall indeed travel faster than light ones (whether friction is ignored, or not), and they do fall more slowly in a denser medium. Newton's "forced" motion corresponds to Aristotle's "violent" motion with its external agent, but Aristotle's assumption that the agent's effect stops immediately it stops acting (e.g., the ball leaves the thrower's hand) has awkward consequences: he has to suppose that surrounding fluid helps to push
658-492: A group of people who claimed to be descended from Asclepius. Asclepiades was the name of several Hellenistic physicians, some of whom probably assumed this appellation either as a sort of honorary title in allusion to the ancient family of the Asclepiadae, or in order to signify that they themselves belonged to it, or even just to indicate that they were proficient healers. This Ancient Greek biographical article
752-453: A house is the bricks, stones, timbers, etc., or whatever constitutes the potential house, while the form of the substance is the actual house, namely 'covering for bodies and chattels' or any other differentia that let us define something as a house. The formula that gives the components is the account of the matter, and the formula that gives the differentia is the account of the form. Like his teacher Plato, Aristotle's philosophy aims at
846-590: A linear scale, and noted various exceptions, such as that sharks had a placenta like the tetrapods. To a modern biologist, the explanation, not available to Aristotle, is convergent evolution . Philosophers of science have generally concluded that Aristotle was not interested in taxonomy, but zoologists who studied this question in the early 21st century think otherwise. He believed that purposive final causes guided all natural processes; this teleological view justified his observed data as an expression of formal design. Aristotle's psychology , given in his treatise On
940-719: A member or sister dialect of the Ionic branch. Greek is the primary member of the Hellenic branch of the Indo-European language family. In ancient times, Greek had already come to exist in several dialects, one of which was Attic. The earliest attestations of Greek, dating from the 16th to 11th centuries BC, are written in Linear B , an archaic writing system used by the Mycenaean Greeks in writing their language;
1034-477: A number of subjects, such as ethics and politics , as well as standard literary texts, like Euripides and Homer . It is likely that during Aristotle's time in the Macedonian court, other prominent nobles, like Ptolemy and Cassander , would have occasionally attended his lectures. Aristotle encouraged Alexander toward eastern conquest, and his own attitude towards Persia was strongly ethnocentric . In one famous example, he counsels Alexander to be "a leader to
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#17327578390451128-435: A part of particular things. For example, it is possible that there is no particular good in existence, but "good" is still a proper universal form. Aristotle disagreed with Plato on this point, arguing that all universals are instantiated at some period of time, and that there are no universals that are unattached to existing things. In addition, Aristotle disagreed with Plato about the location of universals. Where Plato spoke of
1222-496: A priori principles. Aristotle's "natural philosophy" spans a wide range of natural phenomena including those now covered by physics, biology and other natural sciences. In Aristotle's terminology, "natural philosophy" is a branch of philosophy examining the phenomena of the natural world, and includes fields that would be regarded today as physics, biology and other natural sciences. Aristotle's work encompassed virtually all facets of intellectual inquiry. Aristotle makes philosophy in
1316-418: A property or a relation to other things. When one looks at an apple, for example, one sees an apple, and one can also analyse a form of an apple. In this distinction, there is a particular apple and a universal form of an apple. Moreover, one can place an apple next to a book, so that one can speak of both the book and apple as being next to each other. Plato argued that there are some universal forms that are not
1410-595: A row). The movable nu can also be used to turn what would be a short syllable into a long syllable for use in meter . Attic and Euboean Ionic use rr in words, when Cycladean and Anatolian Ionic use rs: Attic and Euboean Ionic use tt, while Cycladean and Anatolian Ionic use ss: Attic Greek grammar follows Ancient Greek grammar to a large extent. References to Attic Grammar are usually in reference to peculiarities and exceptions from Ancient Greek Grammar. This section mentions only some of these Attic peculiarities. In addition to singular and plural numbers, Attic Greek had
1504-620: A set of six books called the Organon around 40 BC by Andronicus of Rhodes or others among his followers. The books are: 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. It goes from the basics, the analysis of simple terms in the Categories, the analysis of propositions and their elementary relations in On Interpretation , to
1598-547: A son whom Aristotle named after his father, Nicomachus . This period in Athens, between 335 and 323 BC, is when Aristotle is believed to have composed many of his philosophical works. He wrote many dialogues, of which only fragments have survived. Those works that have survived are in treatise form and were not, for the most part, intended for widespread publication; they are generally thought to be lecture aids for his students. His most important treatises include Physics , Metaphysics , Nicomachean Ethics , Politics , On
1692-457: A third of his original output has survived , none of it intended for publication. Aristotle provided a complex synthesis of the various philosophies existing prior to him. His teachings and methods of inquiry have had a significant impact across the world, and remain a subject of contemporary philosophical discussion. Aristotle's views profoundly shaped medieval scholarship . The influence of his physical science extended from late antiquity and
1786-559: A thrown stone, in the Physics (254b10), and "natural motion", such as of a falling object, in On the Heavens (300a20). In violent motion, as soon as the agent stops causing it, the motion stops also: in other words, the natural state of an object is to be at rest, since Aristotle does not address friction . With this understanding, it can be observed that, as Aristotle stated, heavy objects (on
1880-425: Is a change where the substrate of the thing that has undergone the change has itself changed. In that particular change he introduces the concept of potentiality ( dynamis ) and actuality ( entelecheia ) in association with the matter and the form. Referring to potentiality, this is what a thing is capable of doing or being acted upon if the conditions are right and it is not prevented by something else. For example,
1974-453: Is a historical accident: his works on botany have been lost, but two books on plants by his pupil Theophrastus have survived. Aristotle reports on the sea-life visible from observation on Lesbos and the catches of fishermen. He describes the catfish , electric ray , and frogfish in detail, as well as cephalopods such as the octopus and paper nautilus . His description of the hectocotyl arm of cephalopods, used in sexual reproduction,
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#17327578390452068-538: Is man a unity? However, according to Aristotle, the potential being (matter) and the actual one (form) are one and the same. Aristotle's immanent realism means his epistemology is based on the study of things that exist or happen in the world, and rises to knowledge of the universal, whereas for Plato epistemology begins with knowledge of universal Forms (or ideas) and descends to knowledge of particular imitations of these. Aristotle uses induction from examples alongside deduction , whereas Plato relies on deduction from
2162-546: Is the Greek dialect of the ancient region of Attica , including the polis of Athens . Often called classical Greek , it was the prestige dialect of the Greek world for centuries and remains the standard form of the language that is taught to students of ancient Greek. As the basis of the Hellenistic Koine , it is the most similar of the ancient dialects to later Greek. Attic is traditionally classified as
2256-412: Is the fulfilment of the end of the potentiality. Because the end ( telos ) is the principle of every change, and potentiality exists for the sake of the end, actuality, accordingly, is the end. Referring then to the previous example, it can be said that an actuality is when a plant does one of the activities that plants do. For that for the sake of which ( to hou heneka ) a thing is, is its principle, and
2350-454: Is the same in both cases, gnomai and theai , but other sound changes were more important in its formation. For example, original -as in the nominative plural was replaced by the diphthong -ai , which did not change from a to e . In the few a -stem masculines, the genitive singular follows the second declension: stratiotēs , stratiotou , stratiotēi , etc. In the omicron or second declension, mainly masculines (but with some feminines),
2444-976: The Early Middle Ages into the Renaissance , and was not replaced systematically until the Enlightenment and theories such as classical mechanics were developed. He influenced Judeo-Islamic philosophies during the Middle Ages, as well as Christian theology , especially the Neoplatonism of the Early Church and the scholastic tradition of the Catholic Church . Aristotle was revered among medieval Muslim scholars as "The First Teacher", and among medieval Christians like Thomas Aquinas as simply "The Philosopher", while
2538-651: The Early Modern period. John Philoponus (in Late antiquity ) and Galileo (in Early modern period ) are said to have shown by experiment that Aristotle's claim that a heavier object falls faster than a lighter object is incorrect. A contrary opinion is given by Carlo Rovelli , who argues that Aristotle's physics of motion is correct within its domain of validity, that of objects in the Earth 's gravitational field immersed in
2632-522: The Great Comet of 371 BC . Aristotle was one of the first people to record any geological observations. He stated that geological change was too slow to be observed in one person's lifetime. The geologist Charles Lyell noted that Aristotle described such change, including "lakes that had dried up" and "deserts that had become watered by rivers", giving as examples the growth of the Nile delta since
2726-474: The History of Animals in a graded scale of perfection, a nonreligious version of the scala naturae , with man at the top. His system had eleven grades of animal, from highest potential to lowest, expressed in their form at birth: the highest gave live birth to hot and wet creatures, the lowest laid cold, dry mineral-like eggs. Animals came above plants , and these in turn were above minerals. He grouped what
2820-550: The Macedonian capital, making his first connections with the Macedonian monarchy . At the age of seventeen or eighteen, Aristotle moved to Athens to continue his education at Plato's Academy . He became distinguished as a researcher and lecturer, earning for himself the nickname "mind of the school" by his tutor Plato . In Athens, he probably experienced the Eleusinian Mysteries as he wrote when describing
2914-455: The Milky Way was made up of "those stars which are shaded by the earth from the sun's rays," pointing out partly correctly that if "the size of the sun is greater than that of the earth and the distance of the stars from the earth many times greater than that of the sun, then... the sun shines on all the stars and the earth screens none of them." He also wrote descriptions of comets, including
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3008-503: The Physics (215a25), Aristotle effectively states a quantitative law, that the speed, v, of a falling body is proportional (say, with constant c) to its weight, W, and inversely proportional to the density, ρ, of the fluid in which it is falling:; Aristotle implies that in a vacuum the speed of fall would become infinite, and concludes from this apparent absurdity that a vacuum is not possible. Opinions have varied on whether Aristotle intended to state quantitative laws. Henri Carteron held
3102-837: The diphthongs eu and au , upsilon continued to be pronounced / u / . Attic contracts more than Ionic does. a + e → long ā . e + e → ē (written ει : spurious diphthong ) e + o → ō (written ου: spurious diphthong) Attic ē (from ē -grade of ablaut or Proto-Greek ā ) is sometimes shortened to e : Attic deletes one of two vowels in a row, called hyphaeresis ( ὑφαίρεσις ). PIE *ky or *chy → Proto-Greek ts ( palatalization ) → Attic and Euboean Ionic tt — Cycladean/Anatolian Ionic and Koine ss . Sometimes, Proto-Greek *ty and *tw → Attic and Euboean Ionic tt — Cycladean/Anatolian Ionic and Koine ss . Proto-Greek and Doric t before i or y → Attic-Ionic s (palatalization). Doric, Aeolian, early Attic-Ionic ss → Classical Attic s . Proto-Greek w ( digamma )
3196-517: The dual number . This was used to refer to two of something and was present as an inflection in nouns, adjectives, pronouns and verbs (any categories inflected for number). Attic Greek was the last dialect to retain it from older forms of Greek, and the dual number had died out by the end of the 5th century BC. In addition to this, in Attic Greek, any plural neuter subjects will only ever take singular conjugation verbs. With regard to declension ,
3290-488: The s (like in the other dialects) lengthens the stem o to the spurious diphthong -ou (see above under Phonology, Vowels): logos "the word" logou from * logosyo "of the word". The dative plural of Attic-Ionic had -oisi , which appears in early Attic but later simplifies to -ois : anthropois "to or for the men". Classical Attic may refer either to the varieties of Attic Greek spoken and written in Greek majuscule in
3384-411: The universal . Aristotle's ontology places the universal ( katholou ) in particulars ( kath' hekaston ), things in the world, whereas for Plato the universal is a separately existing form which actual things imitate. For Aristotle, "form" is still what phenomena are based on, but is "instantiated" in a particular substance. Plato argued that all things have a universal form , which could be either
3478-696: The "Eucleidian" alphabet, after the name of the archon Eucleides , who oversaw the decision, was to become the Classical Greek alphabet throughout the Greek-speaking world. The classical works of Attic literature were subsequently handed down to posterity in the new Ionic spelling, and it is the classical orthography in which they are read today. Proto-Greek long ā → Attic long ē , but ā after e, i, r . ⁓ Ionic ē in all positions. ⁓ Doric and Aeolic ā in all positions. However, Proto-Greek ā → Attic ē after w ( digamma ), deleted by
3572-515: The "extreme view" that Aristotle's concept of force was basically qualitative, but other authors reject this. Archimedes corrected Aristotle's theory that bodies move towards their natural resting places; metal boats can float if they displace enough water ; floating depends in Archimedes' scheme on the mass and volume of the object, not, as Aristotle thought, its elementary composition. Aristotle's writings on motion remained influential until
3666-512: The 5th and 4th centuries BC ( Classical-era Attic) or to the Hellenistic and Roman era standardized Attic Greek, mainly on the language of Attic orators and written in Greek uncial . Attic replaces the Ionic -σσ with -ττ : Proto-Greek Mycenaean Ancient Koine Medieval Modern Asclepiad (title) Asclepiad ( Greek : Ἀσκληπιάδης, pl.: Ἀσκληπιάδαι)
3760-550: The Athenians led to some universally read and admired history, as found in the works of Thucydides and Xenophon . Slightly less known because they are more technical and legal are the orations by Antiphon , Demosthenes , Lysias , Isocrates , and many others. The Attic Greek of philosophers Plato (427–347 BC) and his student Aristotle (384–322 BC) dates to the period of transition between Classical Attic and Koine. Students who learn Ancient Greek usually begin with
3854-554: The Attic dialect and continue, depending upon their interests, to the later Koine of the New Testament and other early Christian writings, to the earlier Homeric Greek of Homer and Hesiod , or to the contemporaneous Ionic Greek of Herodotus and Hippocrates . Attic Greek, like other dialects, was originally written in a local variant of the Greek alphabet. According to the classification of archaic Greek alphabets , which
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3948-576: The Classical Period. Proto-Greek ă → Attic ě . ⁓ Doric: ă remains. Compensatory lengthening of vowel before cluster of sonorant ( r , l , n , m , w , sometimes y ) and s , after deletion of s . ⁓ some Aeolic: compensatory lengthening of sonorant. Proto-Greek and other dialects' / u / (English f oo d ) became Attic / y / (pronounced as German ü , French u ) and represented by y in Latin transliteration of Greek names. In
4042-472: The Colonies , were composed by the philosopher for the young prince. After Philip II's assassination in 336 BC, Aristotle returned to Athens for the second and final time a year later. As a metic , Aristotle could not own property in Athens and thus rented a building known as the Lyceum (named after the sacred grove of Apollo Lykeios ), in which he established his own school. The building included
4136-607: The Greeks and a despot to the barbarians". Alexander's education under the guardianship of Aristotle likely lasted for only a few years, as at around the age of sixteen he returned to Pella and was appointed regent of Macedon by his father Philip. During this time, Aristotle is said to have gifted Alexander an annotated copy of the Iliad , which reportedly became one of Alexander's most prized possessions. Scholars speculate that two of Aristotle's now lost works, On kingship and On behalf of
4230-579: The Mediterranean, including in Ancient Rome and the larger Hellenistic world , and later in the Muslim world , Europe, and other parts of the world touched by those civilizations. The earliest Greek literature , which is attributed to Homer and is dated to the eighth or seventh centuries BC, is written in "Old Ionic" rather than Attic. Athens and its dialect remained relatively obscure until
4324-768: The Persians, and philosophical questions, like the definition of braveness. A widespread speculation in antiquity suggested that Aristotle played a role in Alexander's death, but the only evidence of this is an unlikely claim made some six years after the death. Following Alexander's death, anti-Macedonian sentiment in Athens was rekindled. In 322 BC, Demophilus and Eurymedon the Hierophant reportedly denounced Aristotle for impiety, prompting him to flee to his mother's family estate in Chalcis, Euboea , at which occasion he
4418-545: The Soul ( peri psychēs ), posits three kinds of soul ("psyches"): the vegetative soul, the sensitive soul, and the rational soul. Humans have all three. The vegetative soul is concerned with growth and nourishment. The sensitive soul experiences sensations and movement. The unique part of the human, rational soul is its ability to receive forms of other things and to compare them using the nous (intellect) and logos (reason). Attic Greek language Attic Greek
4512-439: The Soul and Poetics . Aristotle studied and made significant contributions to "logic, metaphysics, mathematics, physics, biology, botany, ethics, politics, agriculture, medicine, dance, and theatre." While Alexander deeply admired Aristotle, near the end of his life, the two men became estranged having diverging opinions over issues, like the optimal administration of city-states, the treatment of conquered populations, such as
4606-512: The age of thirty seven ( c. 347 BC ). Shortly after Plato died, Aristotle left Athens and, at the request of Philip II of Macedon , tutored his son Alexander the Great beginning in 343 BC. He established a library in the Lyceum, which helped him to produce many of his hundreds of books on papyrus scrolls . Though Aristotle wrote many treatises and dialogues for publication, only around
4700-493: The ball along to make it continue to rise even though the hand is no longer acting on it, resulting in the Medieval theory of impetus . Aristotle suggested that the reason for anything coming about can be attributed to four different types of simultaneously active factors. His term aitia is traditionally translated as "cause", but it does not always refer to temporal sequence; it might be better translated as "explanation", but
4794-406: The becoming is for the sake of the end; and the actuality is the end, and it is for the sake of this that the potentiality is acquired. For animals do not see in order that they may have sight, but they have sight that they may see. In summary, the matter used to make a house has potentiality to be a house and both the activity of building and the form of the final house are actualities, which is also
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#17327578390454888-573: The broad sense coextensive with reasoning, which he also would describe as "science". However, his use of the term science carries a different meaning than that covered by the term "scientific method". For Aristotle, "all science ( dianoia ) is either practical, poetical or theoretical" ( Metaphysics 1025b25). His practical science includes ethics and politics; his poetical science means the study of fine arts including poetry; his theoretical science covers physics, mathematics and metaphysics. In his On Generation and Corruption , Aristotle related each of
4982-432: The cause of earthquakes was a gas or vapor ( anathymiaseis ) that was trapped inside the earth and trying to escape, following other Greek authors Anaxagoras , Empedocles and Democritus . Aristotle also made many observations about the hydrologic cycle. For example, he made some of the earliest observations about desalination: he observed early – and correctly – that when seawater is heated, freshwater evaporates and that
5076-409: The composite natural ones, the study of nature would be the primary kind of knowledge; but if there is some motionless independent thing, the knowledge of this precedes it and is first philosophy, and it is universal in just this way , because it is first. And it belongs to this sort of philosophy to study being as being, both what it is and what belongs to it just by virtue of being. Aristotle examines
5170-406: The concepts of substance ( ousia ) and essence ( to ti ên einai , "the what it was to be") in his Metaphysics (Book VII), and he concludes that a particular substance is a combination of both matter and form, a philosophical theory called hylomorphism . In Book VIII, he distinguishes the matter of the substance as the substratum , or the stuff of which it is composed. For example, the matter of
5264-413: The data to come to the theory of evolution . Aristotle's writings can seem to modern readers close to implying evolution, but while Aristotle was aware that new mutations or hybridizations could occur, he saw these as rare accidents. For Aristotle, accidents, like heat waves in winter, must be considered distinct from natural causes. He was thus critical of Empedocles's materialist theory of a "survival of
5358-507: The details of Aristotle's life are not well-established. The biographies written in ancient times are often speculative and historians only agree on a few salient points. Aristotle was born in 384 BC in Stagira , Chalcidice , about 55 km (34 miles) east of modern-day Thessaloniki . He was the son of Nicomachus , the personal physician of King Amyntas of Macedon , and Phaestis, a woman with origins from Chalcis , Euboea . Nicomachus
5452-429: The distinction between Eastern and Western Greek is believed to have arisen by Mycenaean times or before. Mycenaean Greek represents an early form of Eastern Greek, the group to which Attic also belongs. Later Greek literature wrote about three main dialects: Aeolic , Doric , and Ionic ; Attic was part of the Ionic dialect group. " Old Attic " is used in reference to the dialect of Thucydides (460–400 BC) and
5546-523: The dramatists of 5th-century Athens whereas " New Attic " is used for the language of later writers following conventionally the accession in 285 BC of Greek-speaking Ptolemy II to the throne of the Kingdom of Egypt . Ruling from Alexandria , Ptolemy launched the Alexandrian period, during which the city of Alexandria and its expatriate Greek-medium scholars flourished. The original range of
5640-488: The earliest study of formal logic, and his conception of it was the dominant form of Western logic until 19th-century advances in mathematical logic . Kant stated in the Critique of Pure Reason that with Aristotle, logic reached its completion. Most of Aristotle's work is probably not in its original form, because it was most likely edited by students and later lecturers. The logical works of Aristotle were compiled into
5734-457: The establishment of its democracy following the reforms of Solon in the sixth century BC; so began the classical period , one of great Athenian influence both in Greece and throughout the Mediterranean. The first extensive works of literature in Attic are the plays of dramatists Aeschylus , Sophocles , Euripides , and Aristophanes dating from the fifth century BC. The military exploits of
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#17327578390455828-441: The first century AD editor who assembled various small selections of Aristotle's works to create the treatise we know by the name Metaphysics . Aristotle called it "first philosophy", and distinguished it from mathematics and natural science (physics) as the contemplative ( theoretikē ) philosophy which is "theological" and studies the divine. He wrote in his Metaphysics (1026a16): If there were no other independent things besides
5922-522: The fittest" origin of living things and their organs, and ridiculed the idea that accidents could lead to orderly results. To put his views into modern terms, he nowhere says that different species can have a common ancestor , or that one kind can change into another , or that kinds can become extinct . Aristotle did not do experiments in the modern sense. He used the ancient Greek term pepeiramenoi to mean observations, or at most investigative procedures like dissection. In Generation of Animals , he finds
6016-530: The following. Brood size decreases with (adult) body mass, so that an elephant has fewer young (usually just one) per brood than a mouse. Lifespan increases with gestation period , and also with body mass, so that elephants live longer than mice, have a longer period of gestation, and are heavier. As a final example, fecundity decreases with lifespan, so long-lived kinds like elephants have fewer young in total than short-lived kinds like mice. Aristotle distinguished about 500 species of animals , arranging these in
6110-529: The forms as existing separately from the things that participate in them, 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. Concerning the nature of change ( kinesis ) and its causes, as he outlines in his Physics and On Generation and Corruption ( 319b–320a), he distinguishes coming-to-be ( genesis , also translated as 'generation') from: Coming-to-be
6204-514: The four elements proposed earlier by Empedocles , earth , water , air , and fire , to two of the four sensible qualities, hot, cold, wet, and dry. In the Empedoclean scheme, all matter was made of the four elements, in differing proportions. Aristotle's scheme added the heavenly aether , the divine substance of the heavenly spheres , stars and planets. Aristotle describes two kinds of motion: "violent" or "unnatural motion", such as that of
6298-538: The god as their founder. Some hold that the Asclepiads were priests of Asclepion . The Asclepiadae could also have been a guild in honour of Asclepius, the Greek god of healing, separate from the healing temples and closely related to Hippocratic tradition. Plato gives Hippocrates this title in his Protagoras , referring to him as “Hippocrates of Kos, the Asclepiad”. It may also have been used to refer to
6392-420: The ground, say) require more force to make them move; and objects pushed with greater force move faster. This would imply the equation incorrect in modern physics. Natural motion depends on the element concerned: the aether naturally moves in a circle around the heavens, while the 4 Empedoclean elements move vertically up (like fire, as is observed) or down (like earth) towards their natural resting places. In
6486-585: The head of the Lyceum, who in turn passed them down to Neleus of Scepsis in Asia Minor. There, the papers remained hidden for protection until they were purchased by the collector Apellicon . In the meantime, many copies of Aristotle's major works had already begun to circulate and be used in the Lyceum of Athens, Alexandria , and later in Rome . With the Prior Analytics , Aristotle is credited with
6580-437: The image. According to Aristotle, spontaneity and chance are causes of some things, distinguishable from other types of cause such as simple necessity. Chance as an incidental cause lies in the realm of accidental things , "from what is spontaneous". There is also more a specific kind of chance, which Aristotle names "luck", that only applies to people's moral choices. In astronomy , Aristotle refuted Democritus 's claim that
6674-447: The latter, it used an L-shaped variant of lambda ( [REDACTED] ) and an S-shaped variant of sigma ( [REDACTED] ). It lacked the consonant symbols xi ( Ξ ) for /ks/ and psi ( Ψ ) for /ps/ , expressing these sound combinations with ΧΣ and ΦΣ , respectively. Moreover, like most other mainland Greek dialects, Attic did not yet use omega ( Ω ) and eta ( Η ) for the long vowels /ɔː/ and /ɛː/ . Instead, it expressed
6768-468: The modern zoologist would call vertebrates as the hotter "animals with blood", and below them the colder invertebrates as "animals without blood". Those with blood were divided into the live-bearing ( mammals ), and the egg-laying ( birds , reptiles , fish ). Those without blood were insects, crustacea (non-shelled – cephalopods, and shelled ) and the hard-shelled molluscs ( bivalves and gastropods ). He recognised that animals did not exactly fit into
6862-489: The more widely used Ionic alphabet, native to the eastern Aegean Islands and Asia Minor. By the late fifth century, the concurrent use of elements of the Ionic system with the traditional local alphabet had become common in private writing, and in 403 BC, it was decreed that public writing would switch to the new Ionic orthography, as part of the reform following the Thirty Tyrants . This new system, also called
6956-402: The oceans are then replenished by the cycle of rainfall and river runoff ("I have proved by experiment that salt water evaporated forms fresh and the vapor does not when it condenses condense into sea water again.") Aristotle was the first person to study biology systematically, and biology forms a large part of his writings. He spent two years observing and describing the zoology of Lesbos and
7050-407: The poet Dante called him "the master of those who know". His works contain the earliest known formal study of logic, and were studied by medieval scholars such as Peter Abelard and Jean Buridan . Aristotle's influence on logic continued well into the 19th century. In addition, his ethics , although always influential, gained renewed interest with the modern advent of virtue ethics . In general,
7144-432: The same certainty as experimental science, but it sets out testable hypotheses and constructs a narrative explanation of what is observed. In this sense, Aristotle's biology is scientific. From the data he collected and documented, Aristotle inferred quite a number of rules relating the life-history features of the live-bearing tetrapods (terrestrial placental mammals) that he studied. Among these correct predictions are
7238-439: The seed of a plant in the soil is potentially ( dynamei ) a plant, and if it is not prevented by something, it will become a plant. Potentially, beings can either 'act' ( poiein ) or 'be acted upon' ( paschein ), which can be either innate or learned. For example, the eyes possess the potentiality of sight (innate – being acted upon), while the capability of playing the flute can be possessed by learning (exercise – acting). Actuality
7332-702: The sights one viewed at the Mysteries, "to experience is to learn" ( παθεĩν μαθεĩν ). Aristotle remained in Athens for nearly twenty years before leaving in 348/47 BC after Plato's death. The traditional story about his departure records that he was disappointed with the Academy's direction after control passed to Plato's nephew Speusippus , although it is possible that the anti-Macedonian sentiments in Athens could have also influenced his decision. Aristotle left with Xenocrates to Assos in Asia Minor , where he
7426-526: The spoken Attic dialect included Attica and a number of the Aegean Islands ; the closely related Ionic was also spoken along the western and northwestern coasts of Asia Minor in modern Turkey , in Chalcidice , Thrace , Euboea , and in some colonies of Magna Graecia . Eventually, the texts of literary Attic were widely studied far beyond their homeland: first in the classical civilizations of
7520-431: The stem ends in o or e , which is composed in turn of a root plus the thematic vowel , an o or e in Indo-European ablaut series parallel to similar formations of the verb. It is the equivalent of the Latin second declension. The alternation of Greek -os and Latin -us in the nominative singular is familiar to readers of Greek and Latin. In Attic Greek, an original genitive singular ending *-osyo after losing
7614-589: The stem is the part of the declined word to which case endings are suffixed. In the alpha or first declension feminines, the stem ends in long a , which is parallel to the Latin first declension. In Attic-Ionic the stem vowel has changed to ē in the singular, except (in Attic only) after e , i or r . For example, the respective nominative, genitive, dative and accusative singular forms are ἡ γνώμη τῆς γνώμης τῇ γνώμῃ τὴν γνώμην gnome , gnomes , gnome(i) , gnomen , "opinion" but ἡ θεᾱ́ τῆς θεᾶς τῇ θεᾷ τὴν θεᾱ́ν thea , theas , thea(i) , thean , "goddess". The plural
7708-752: The study of more complex forms, namely, syllogisms (in the Analytics ) and dialectics (in the Topics and Sophistical Refutations ). The first three treatises form the core of the logical theory stricto sensu : the grammar of the language of logic and the correct rules of reasoning. The Rhetoric is not conventionally included, but it states that it relies on the Topics . What is today called Aristotelian logic with its types of syllogism (methods of logical argument), Aristotle himself would have labelled "analytics". The term "logic" he reserved to mean dialectics . The word "metaphysics" appears to have been coined by
7802-554: The surrounding seas, including in particular the Pyrrha lagoon in the centre of Lesbos. His data in History of Animals , Generation of Animals , Movement of Animals , and Parts of Animals are assembled from his own observations, statements given by people with specialized knowledge, such as beekeepers and fishermen, and less accurate accounts provided by travellers from overseas. His apparent emphasis on animals rather than plants
7896-474: The time of Homer , and "the upheaving of one of the Aeolian islands , previous to a volcanic eruption ."' Meteorologica lends its name to the modern study of meteorology, but its modern usage diverges from the content of Aristotle's ancient treatise on meteors . The ancient Greeks did use the term for a range of atmospheric phenomena, but also for earthquakes and volcanic eruptions. Aristotle proposed that
7990-476: The traditional rendering will be employed here. Aristotle describes experiments in optics using a camera obscura in Problems , book 15. The apparatus consisted of a dark chamber with a small aperture that let light in. With it, he saw that whatever shape he made the hole, the sun's image always remained circular. He also noted that increasing the distance between the aperture and the image surface magnified
8084-433: The vowel phonemes /o, oː, ɔː/ with the letter Ο (which corresponds with classical Ο , ΟΥ , Ω ) and /e, eː, ɛː/ with the letter Ε (which corresponds with Ε , ΕΙ , and Η in later classical orthography). Moreover, the letter Η was used as heta , with the consonantal value of /h/ rather than the vocalic value of /ɛː/ . In the fifth century, Athenian writing gradually switched from this local system to
8178-493: The wider Aristotelian tradition that followed, which set the groundwork for the development of modern science . Little is known about Aristotle's life. He was born in the city of Stagira in northern Greece during the Classical period . His father, Nicomachus , died when Aristotle was a child, and he was brought up by a guardian. At around eighteen years old, he joined Plato 's Academy in Athens and remained there until
8272-457: Was a title borne by many Ancient Greek medical doctors, notably Hippocrates of Kos . It is not clear whether the Asclepiads were originally a biological family, or simply a member of an order or guild of doctors. The Asclepiads may have originally been members of a family claiming descent from the god of healing Asclepius , with the name only later being adopted by all doctors; or they may always have been an association of medical men venerating
8366-487: Was introduced by Adolf Kirchhoff , the old-Attic system belongs to the "eastern" or "blue" type, as it uses the letters Ψ and Χ with their classical values ( /ps/ and /kʰ/ ), unlike "western" or "red" alphabets, which used Χ for /ks/ and expressed /kʰ/ with Ψ . In other respects, Old Attic shares many features with the neighbouring Euboean alphabet (which is "western" in Kirchhoff's classification). Like
8460-411: Was invited by his former fellow student Hermias of Atarneus ; he stayed there for a few years and left around the time of Hermias' death. While at Assos, Aristotle and his colleague Theophrastus did extensive research in botany and marine biology , which they later continued at the near-by island of Lesbos . During this time, Aristotle married Pythias , Hermias's adoptive daughter and niece, and had
8554-404: Was lost in Attic before historical times. Attic retained Proto-Greek h- (from debuccalization of Proto-Indo-European initial s- or y- ), but some other dialects lost it ( psilosis "stripping", "de-aspiration"). Attic-Ionic places an n ( movable nu ) at the end of some words that would ordinarily end in a vowel, if the next word starts with a vowel, to prevent hiatus (two vowels in
8648-482: Was said to have belonged to the medical guild of Asclepiadae and was likely responsible for Aristotle's early interest in biology and medicine. Ancient tradition held that Aristotle's family descended from the legendary physician Asclepius and his son Machaon . Both of Aristotle's parents died when he was still at a young age and Proxenus of Atarneus became his guardian. Although little information about Aristotle's childhood has survived, he probably spent some time in
8742-461: Was said to have stated "I will not allow the Athenians to sin twice against philosophy" – a reference to Athens's trial and execution of Socrates . He died in Chalcis, Euboea of natural causes later that same year, having named his student Antipater as his chief executor and leaving a will in which he asked to be buried next to his wife. Aristotle left his works to Theophrastus, his successor as
8836-584: Was widely disbelieved until the 19th century. He gives accurate descriptions of the four-chambered fore-stomachs of ruminants , and of the ovoviviparous embryological development of the hound shark . He notes that an animal's structure is well matched to function so birds like the heron (which live in marshes with soft mud and live by catching fish) have a long neck, long legs, and a sharp spear-like beak, whereas ducks that swim have short legs and webbed feet. Darwin , too, noted these sorts of differences between similar kinds of animal, but unlike Aristotle used
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