Aristotle's contributions

Content

• Works of Aristotle
• Examples of Aristotle's contributions

Aristotle of Estagira (384 BC-322 BC) was a Macedonian philosopher of the ancient Greek civilization, considered among the main thinkers of the West and whose ideas, collected in around 200 treatises of which only 31 are still preserved, have had validity and influence on our intellectual history for more than two thousand years.

His writings dealt with a wide range of interests, from logic, politics, ethics, physics, and rhetoric, to poetics, astronomy, and biology; areas of knowledge in which it played a transformative role, in some cases even foundational: his were the first systematic studies of logic and biology in history.

He was a disciple of other important philosophers such as Plato and Eudoxus, during the twenty years in which he was trained at the Academy of Athens, the same city where he would later found the Lyceum., place where he would teach until the fall of his disciple, Alexander of Macedonia, also known as Alexander the Great. Then he would go to the city of Chalcis, where he would die the following year.

Aristotle's career is a cornerstone of contemporary sciences and philosophies, and he is often honored in international conferences, treatises, and publications.

Works of Aristotle

There are 31 works written by Aristotle that have survived to us, although the authorship of some of them is currently in dispute. The call Corpus aristotelicum (Aristotelian body), however, is studied in its Prussian edition by Inmanuel Bekker, produced between 1831-1836 and many of its titles are still kept in Latin.

• Treatises of Logic: Categories (Category), From interpretation (By interpretatione), First analytics (Analytica priora), Analytical seconds (Rear Analytica), Topics (Topic), Sophistic rebuttals (By sophisticis elenchis).
• Physics treatises: Physical (Physica), Above the sky (Of caelo), About generation and corruption (Of generatione et corruptione), Meteorology (Meteorological), Of the universe (Of World), Of the soul (By anima), Little Treatises on Nature (Parva naturalia), Of respiration (By spiritu), History of animals (Animalium history), The parts of animals (By partibus animalium), The movement of animals (Frommotu animalium), Animal progression (By incessu animalium), Generation of animals (By generatione animalium), Of the colors (By coloribus), Of the things of the audition (By audibilibus), Physiognomonic (Physiognomonica), Of the plants (By plantis), Of the wonders heard (By mirabilibus auscultationibus), Mechanics (Mechanica), Problems (Problem), Of imperceptible lines (By lineis insecabilibus), The places of the winds (Ventorum situs), Melisos, Xenophanes and Gorgias (abbreviated MXG).
• Treatise on metaphysics: Metaphysics (Metaphysica).
• Ethics and policy treaties: Nicomachean ethics (Ethica Nicomachea), Great morale (Magna moralia), Eudemic Ethics (Ethica Eudemia), Booklet about virtues and vices (De virtutibus et vitiis libellus), Politics (Politics), Economic (Oeconomics) and Constitution of the Athenians (Athenaion politea).
• Treatises of rhetoric and poetics: Rhetorical art (Rhetorica), Rhetoric to Alexander (Rhetorica ad Alexandrum) and Poetics (Poetic ars).

Examples of Aristotle's contributions

1. He built his own philosophical system. Opposed to the ideas of his teacher Plato, for whom the world was composed of two planes: the sensible and the intelligible, Aristotle proposed that the world had no compartments. Thus he criticized his teacher's "Theory of Forms", who postulated that the world of ideas was the true world and that the perceptible world was only a reflection of it. For Aristotle, things are made up of a matter and a form, irremediably together in the essence of reality, and their truth can only be reached empirically, that is, through experience.

1. He is the founding father of logic. This Greek philosopher is attributed the first research systems on the principles of validity or invalidity of reasoning, through the construction of the category of syllogism (deduction). In his own words, this is “a speech (logos) in which, established certain things, it necessarily results from them, for being what they are, something else different ”; that is, a mechanism for the inference of conclusions from a set of premises. This system made it possible to study the reasoning mechanism itself from the validity or invalidity of the premises. A model that remains valid until today.

1. He postulated the principle of non-contradiction. Another great contribution to logic was the principle of non-contradiction, which stipulates that a proposition and its negation cannot be true at the same time and in the same sense. Hence, any reasoning that implies a contradiction may be considered false. Aristotle also devoted his efforts to the study of fallacies (invalid reasoning), of which he identified and classified thirteen main types.

1. He proposed a division of philosophy. In those times, philosophy was understood as the "study of truth", so its object of interest was quite broad. Aristotle instead proposed a series of disciplines based on it: logic, which he considered a preparatory discipline; theoretical philosophy, made up of physics, mathematics and metaphysics; and practical philosophy, which consisted of ethics and politics.

1. He proposed an ethic of virtues. Aristotle defended as essential the virtues of the spirit, that is, those that had to do with human reason, which for him was divided into two: the intellect and the will. Through them, man could control his irrational part. These precepts would serve a whole stream of philosophical schools to come, whose division of man between a rational and irrational aspect would incarnate in other forms, such as the Christian division between the imperishable soul and the mortal body.

1. He exposed the classical theory of the forms of government. This theory was taken up virtually unchanged in much later centuries and underpins much of our current system of political classifications. Aristotle proposed six forms of government, classified according to whether or not they sought the common good and the number of existing rulers, namely:

• Regimes that seek the common good:
  • If a single person governs: Monarchy
  • If few rule: Aristocracy
  • If many govern: Democracy
• Regimes degraded from them:
  • If one person governs: Tyranny
  • If few rule: Oligarchy
  • If many rule: Demagoguery

This Aristotelian text and its abundant examples have served historians to rebuild much of the Greek society of the time.

1. He proposed a geocentric astronomical model. This model thought of the earth as a fixed entity (although round) around which the stars revolved in a spherical vault. This model remained in force throughout the centuries, until Nicolás Copernicus in the 16th century introduced a model that posed the Sun as the center of the universe.

1. He developed a physical theory of the four elements. His physical theory was based on the existence of four elemental substances: water, earth, air, fire and ether. To each one he assigned a natural movement, namely: the first two moved towards the center of the universe, the next two moved away from it, and the ether revolved around said center. This theory remained in force until the Scientific Revolution of the 16th and 17th centuries.

1. He postulated the theory of spontaneous generation. Perfected by Jan Van Helmont in the 17th century and finally refuted by the studies of Louis Pasteur, this theory of the spontaneous appearance of life proposed the creation of it from humidity, dew or sweat, thanks to a life-generating force from matter, which he named entelechy.

1. Laid the foundations for literary theory. Between your Rhetoric and his Poetics, Aristotle studied the forms of language and imitative poetry, overcoming Plato's suspicion of poets (whom he had expelled from his Republic cataloging them as liars), and thus laying the foundations for a philosophical study of aesthetics and the literary arts, which he divided into three main forms:

• Epic Precursor of the narrative, it has a mediator (narrator) who recalls or recounts the events and therefore is very far from the truth of them.
• Tragedy. By reproducing the facts and making them happen in front of the public, this form of representation is the highest for Aristotle and the one that serves the best ends for the polis, since it represents man better than he is, and also his fall.
• Comedy. Similar to tragedy, but representing men worse than they are. The comedy study fragments in the Poetics Aristotle's are unfortunately lost.