The Ethics of Jean-Paul Sartre This book is a defense of Jean-Paul Sartre as a moral philosopher. The text examines the works Sartre compiled about ethics. It explores the arguments that are often offered against Sartre in the ethical discipline. The text demonstrates that Sartre was a moral philosopher. It argues that Sartre had an ethical dimension in his philosophy. It points out several works, which support the notion that Sartre was a moral philosopher.