This book challenges the standard view of the relationship between Kant's and Sartre's practical philosophies, making a case for regarding Kant as one of Sartre's most significant predecessors. By using an original comparative methodology, the book identifies several fundamental theses of Sartre's practical philosophy despite the common reading of Sartre as a philosopher without a practical philosophy. Furthermore, the book shows that Sartre's practical philosophy proves to be closer to Kant than dominant contemporary Kantian theories are. Starting from the similarities between Kant and Sartre, the book uncovers the project of a critical ethics which is philosophically more compelling than dominant contemporary Kantian theories.

This book challenges the view of the relationship between Kant's and Sartre's practical philosophies arguing that Kant was one of Sartre's most significant predecessors. The book identifies several fundamental theses of Sartre's practical philosophy, and shows Sartre to be closer to Kant in this respect than many contemporary Kantian theories are.