Books E'-I': Practical, poetic, and theoretical sciences. Examination of the essence: What is being? The perceptible form of the mind as the essence of beings. The matter. Beings from an evolutionary perspective. Force and energy. The One. Criticism of the Pythagorean and Platonic views.

Aristotle, son of the physician Nicomachus, was born in Stagira in 384 BC. Information about the early years of his life is sparse. At the age of seventeen, he went to Athens to study at the Platonic Academy. He stayed there for twenty years, from 367 to 348 BC, until Plato died. Then Aristotle left for Assos in Troas, and after a three-year stay there, he went to Lesbos and then to Macedonia, where he took on the education of the royal heir, Alexander.

When his student ascended to 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 flee to Chalcis, his mother's hometown, where he died in 322.

A universal spirit, Aristotle created a vast and valuable philosophical and scientific body of work. Epistemology, logic, theology, physics, biology, psychology, ethics, political philosophy, aesthetics are the main fields of knowledge he researched and studied. The Alexandrian Hermippus counted Aristotle's works at 400. To this day, lists have been preserved that include 143 titles of his works. Diogenes Laertius estimated the number of lines in Aristotle's writings to be 440,000. The impact of his work on shaping global thought has been strong for centuries and remains so.