I knew a man who gave twenty years of his life to a scatterbrained woman, sacrificing everything to her, his friendships, his work, the very respectability of his life and who one evening recognized that he had never loved her. He had been bored, thats all, bored like most people. Hence he had made himself out of whole cloth a life full of complications and drama. Something must happen and that explains most human commitments. Something must happen even loveless slavery, even war or death.

Soon after the event on 6 August 1945 he was one of the few French editors to publicly express opposition and disgust to the United States' dropping the atomic bomb in Hiroshima. His views contributed to the rise of the philosophy known as absurdism. To distinguish his ideas scholars sometimes refer to the Paradox of the Absurd when referring to "Camus's Absurd".

In an interview in 1945 Camus rejected any ideological associations: "No I am not an existentialist. Sartre and I are always surprised to see our names linked. In 1949 Camus founded the Group for International Liaisons within the Revolutionary Union Movement after his split with Garry Davis's Citizens of the World movement of which the surrealist André Breton was also a member.