CATEGORIES: An introduction to Aristotelian Logic. An expression of being and a record of the forms of being contained in reality. The groups of being, the groups of properties attributed to a subject. Substance, quantity, quality, relation, space, time, position, possession, action, passion.

ABOUT INTERPRETATION: The second work of the Organon. Philosophy of logic, philosophy of language, ontology, epistemology. The parts and forms of logical propositions and the modes of expression associated with those propositions are examined.

Aristotle, the son of the physician Nicomachus, was born in Stagira in 384 BC. Information about his early years is very limited. At the age of seventeen, he went to Athens to study at the Platonic Academy. There he stayed for twenty years, from 367 to 348 BC, when Plato died. Then Aristotle left for Assos in Troas, and after a three-year stay there, he went to Lesbos and subsequently to Macedonia, where he took on the education of the royal child Alexander. When his student ascended the throne, Aristotle settled in Athens and founded his school, the Lyceum. After Alexander's death (323 BC), the philosopher's stay in Athens became difficult. He was forced to seek refuge in Chalcis, his mother's homeland, where he died in 322.

As a universal spirit, Aristotle created a vast and valuable body of philosophical and scientific work. Epistemology, logic, theology, physics, biology, psychology, ethics, political philosophy, aesthetics are the main areas of knowledge he explored and studied. The Alexandrian Hermippus estimated Aristotle's works to be 400. We have preserved lists that include 143 titles of his works. Diogenes Laertius estimated the number of verses in Aristotelian writings to be 440,000. The influence of his work on shaping world thought has been strong for centuries and remains so.

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