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

General introduction P. N. Singer; 1. Avoiding Distress Vivian Nutton; 2. Character Traits Daniel Davies and P. N. Singer; 3. Affections and Errors of the Soul P. N. Singer; 4. The Capacities of the Soul Depend on the Mixtures of the Body P. N. Singer; Greek-English and Arabic-English index; English-Greek and English-Arabic glossary; Bibliography; General index; Index of passages cited.