Well, then I'll die.' Sooner than other people, obviously. But everybody knows that life isn't worth living. And when it came down to it, I wasn't unaware of the fact that it doesn't matter very much whether you die at thirty or at seventy since, in either case, other men and women will naturally go on living, for thousands of years even. Nothing was plainer, in fact. It was still only me who was dying, whether it was now or in twenty years' time.

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.