Simone de Beauvoir made her own distinctive contribution to existentialism in the form of an ethics which diverged sharply from that of Jean-Paul Sartre. In her novels and philosophical essays of the 1940s she produced not just a recognizably existentialist ethics, but also a character ethics and an ethics for violence. These concerns, stemming from her own personal philosophical background, give a vital, contemporary resonance to her work. De Beauvoir's...