"Even if I lived a hundred lives, I still wouldn't be exhausted." These words capture the intensity of the experiences of Claude Lanzmann, a man whose acts have always been a negation of resignation: a member of the Resistance at sixteen, a friend to Jean-Paul Sartre and a lover to Simone de Beauvoir, and the director of one of the most important films in the history of cinema, Shoah . In these pages, Lanzmann composes a hymn to life that flows from...