What can a meaning outside my condition mean to me? I can understand only in human terms. What I touch, what resists me--that is what I understand. And these two certainties--my appetite for the absolute and for unity and the impossibility of reducing this world to a rational and reasonable principle--I also know that I cannot reconcile them. What other truth can I admit without lying, without bringing in a hope which I lack and which means nothing within the limits of my condition?

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.