Albert Camus - The Myth of Sisyphus
At this point of his effort man stands face to face with the irrational. He feels within him his longing for happiness and for reason. The absurd is born of this confrontation between the human need and the unreasonable silence of the world. This must not be forgotten. This must be clung to because the whole consequence of a life can depend on it. The irrational, the human nostalgia, and the absurd that is born of their encounter – these are the three characters in the drama that must necessarily end with all the logic of which an existence is capable.