Paul Lafargue, disciple and son-in-law of Karl Marx, was among the most important persons giving organized political expression to Marxism in France. He helped found both the first French collectivist party and the first French Marxist party. He was the first Marxist to sit in the French legislature and for three decades served as the chief theoretician and propagandist for Marxism in France. With his wife, Laura, he translated the Communist...