One does not discover the absurd without being tempted to write a manual of happiness. "What! — by such narrow ways — ?" There is but one world, however. Happiness and the absurd are two sons of the same earth. They are inseparable. It would be a mistake to say that happiness necessarily springs from the absurd discovery. It happens as well that the felling of the absurd springs from happiness.

The Myth of Sisyphus (1942)