What is good? What is happiness? What is virtue?What is free will and who is responsible for the fate and well-being of a person?This is discussed by the supporter of reasonable behavior and moderation in everything, the great philosopher Aristotle. Three works on ethics have come down to us: Eudemean Ethics, Nicomachean Ethics, and Great Ethics.The question of whether these works belong to Aristotle is still a matter of debate. The author of the Eudemic Ethics was most likely Eudemus of Rhodes, a student of Aristotle, who may have revised the work of his teacher.The Great Ethics, which is actually just a small treatise summarizing the ethical views of Aristotle, written by a peripatetic - an unknown student of the philosopher.And only about the "Nicomachean Ethics" can we say with confidence that the great thinker himself was its author.The last two works are included in the proposed collection, moreover, the "Nicomachean Ethics" is published in the translation of E. Radlov, which was not published either in the USSR or in modern Russia.The publisher's layout of the book has been preserved in a4-pdf format.