It’s a cliché to say that medicine is a science. It isn’t. Medicine is not a science—it is a practice based on sciences—physics, chemistry, biology, ecology, economics—that differs from other technical disciplines because its object is a subject: the human being. The author reconstructs the historical development of the scientific body of knowledge that medicine now possesses and considers this body as the necessary means to achieve the purpose of being a physician—that is, a per...