New English translations, with accessible commentary, of psychological and ethical writings by Galen, the foremost philosopher-doctor of the ancient world.

Annotated translation of a key text in the history of medical and philosophical thinking about the human body.

In this book, the Graeco-Roman doctor Galen sets out his influential theory of the 'mixtures' of the human body and his ideal of the 'well-tempered' person, whose perfect balance ensures excellent performance both physically and psychologically. It is a key text in the history of ideas about the human organism.