Samuel Kahn’s book is a wide-ranging and provocative discussion of important issues in normative ethics, metaethics and moral psychology. It contains thoughtful and cogent discussions not only of Kant and the Kant literature, but also of contemporary treatments of the moral ought, responsibility and the place of happiness among human ends. Kahn provides an engaging introduction to all these themes.

Allen Wood, Indiana University Bloomington

Samuel Kahn explores one of the most puzzling but under-theorized aspects of Kant’s ethics: the nature and moral importance of human happiness. Against most readings, Kahn contends that not only was Kant wrong to insist that a person could have no moral duty to promote her own happiness, but also that his own views entail that we do. Kahn brings Kant’s ethics into a sustained and illuminating conversation with the extensive contemporary literature on the relationship between obligation, blameworthiness, and the possibility of fulfilling (or failing to fulfill) the demands of morality. This encyclopedic work will be a valuable resource not just for those interested in Kant’s practical philosophy, but for anyone concerned with the moral significance of our physical and psychological limitations.

David Sussman, University of Illinois at Urbana-Champaign