Existentialism isn't so atheistic that it wears itself out showing that God doesn't exist. Rather, it declares that even if God did exist, that would change nothing.

They have succeeded in accumulating a greater mass of objects, but the joy in the world has grown less.

Even as I approach the gambling hall, as soon as I hear, two rooms away, the jingle of money poured out on the table, I almost go into convulsions.

He did not know that the new life would not be given him for nothing, that he would have to pay dearly for it, that it would cost him great striving, great suffering. But that is the beginning of a new story -- the story of the gradual renewal of a man, the story of his gradual regeneration, of his passing from one world into another, of his initiation into a new unknown life. That might be the subject of a new story, but our present story is ended.

I've made a terrible confession to you, he concluded gloomily. Do appreciate it, gentlemen. And it's not enough, not enough to appreciate it, you must not just appreciate it, it should also be precious to you, and if not, if this, too, goes past your souls, then it means you really do not respect me, gentlemen. I tell you that, and I will die of shame at having confessed to such men as you.

God is necessary, and therefore must exist...But I know that he does not and cannot exist...Don't you understand that a man with these two thoughts cannot go on living?

There is immeasurably more left inside than what comes out in words. Your thought, even a bad one, while it is with you, is always more profound, but in words it is more ridiculous and dishonorable.