Abstract
In Quod animi mores, Galen says both that there is an identity between the capacities of the soul and the mixtures of the body, and that the soul’s capacities ‘follow upon’ the bodily mixtures. The seeming tension in this text can be resolved by noting that the soul’s capacities are constituted by, and hence are nothing over and above, bodily mixtures, but bodily mixtures explain the soul’s capacities and not the other way around. Galen’s proposal represents a distinctive position in the Ancient debate on the relationship between soul and body.