Originally published in 1940 this book contains an expanded English translation of Books 8 and 9 of Aristotle''s Nicomachean Ethics. These two books are devoted to a discussion on the nature of friendship and the role it played in Greek life and Percival supplies an introduction with a background to the subject of ancient friendship prior to Aristotle''s formulation. This book will be of value to anyone with an interest in ancient friendship or the philosophy of Aristotle.