References to medicine and medical writings in Aristotle’s ethical treatises are occasional, isolated and, for the most part, allusive. However, in many cases, the investigation of the human good, in Nicomachean Ethics and Eudemian Ethics, directly calls upon the skills of the physician. For example, it is important to identify, among incontinent people, those who are the “easier to cure”. This does not mean that physiology and medicine are immediately prescriptive for political science and that, in order to cure incontinence or any other type of moral weakness, one must call a doctor. This is instead a task for political science. Nevertheless, according to Aristotle, given that certain moral disorders are at the same time physical disorders, examining virtues and vices implies that we are also able to identify certain states that are common to both the body and the soul—exactly the sort of facts that medicine and physiology bring to light.