How many ideas have there been in the history of man which were unthinkable ten years before they appeared?

My God, a moment of bliss. Why, isn't that enough for a whole lifetime?

I don’t understand anything...and I no longer want to understand anything. I want to stick to the fact...If I wanted to understand something, I would immediately have to betray the fact, but I’ve made up my mind to stick to the fact.

Even those who have renounced Christianity and attack it, in their inmost being still follow the Christian ideal, for hitherto neither their subtlety nor the ardour of their hearts has been able to create a higher ideal of man and of virtue than the ideal given by Christ of old.

I never have frustrations. The reason is to wit: Of at first I don't succeed, I quit!

If God does not exist, everything is permitted.

But twice-two-makes-four is for all that a most insupportable thing. Twice-two-makes-four is, in my humble opinion, nothing but a piece of impudence. Twice-two-makes-four is a farcical, dressed-up fellow who stands across your path with arms akimbo and spits at you.