My melancholy is the most faithful sweetheart I have had.

This is all that I've known for certain, that God is love. Even if I have been mistaken on this or that point: God is nevertheless love.

People try to persuade us that the objections against Christianity spring from doubt. That is a complete misunderstanding. The objections against Christianity spring from insubordination, the dislike of obedience, rebellion against all authority. As a result, people have hitherto been beating the air in their struggle against objections, because they have fought intellectually with doubt instead of fighting morally with rebellion.

To cheat oneself out of love is the most terrible deception; it is an eternal loss for which there is no reparation, either in time or in eternity.

No one is so terribly deceived as he who does not himself suspect it.

Far from idleness being the root of all evil, it is rather the only true good.

I have, I believe, the courage to doubt everything; I have, I believe, the courage to fight against everything; but I do not have the courage to acknowledge anything, the courage to possess, to own anything.