Science increasingly deals with human behavior: biology, neuroscience, genetics, psychology, evolutionary theory, and ethology all bring new insights into our actions and uncover new facts about our agency. However, what is the philosophical significance of their findings? The answer to this question varies according to one's background philosophical views. On the one hand, the dominant empiricist view contends that the sciences can in principle tell us everything there is to know about human agency. On the other hand, there are other non-empiricist views - such as Kantian or Aristotelian...