I do not believe in God; his existence has been disproved by Science. But in the concentration camp, I learned to believe in men.

I exist, that is all, and I find it nauseating.

I tell you in truth: all men are Prophets or else God does not exist.

What is meant here by saying that existence precedes essence? It means that first of all, man exists, turns up, appears on the scene, and, only afterwards, defines himself. ... Not only is man what he conceives himself to be, but he is also only what he wills himself to be after this thrust toward existence.Man is nothing else but what he makes of himself.

I think of death only with tranquility, as an end. I refuse to let death hamper life. Death must enter life only to define it.

Man is not the sum of what he has but the totality of what he does not yet have, of what he might have