The famous book by the remarkable thinker of the 20th century Alexei Fedorovich Losev and the eminent philologist Aza Alibekovna Taho-Godi is dedicated to Aristotle, one of the greatest philosophers of antiquity. The complex, dramatically rich biography of Aristotle and the foundations of his philosophical and analytical system, inextricably linked with the living experience of life, are presented in the context of the turbulent socio-political events of that time. The most significant works of Aristotle, for whom truth is most precious, are relevant to this day.