About what we neither know nor feel precisely while awake-whether we have a good or a bad conscience toward a certain person-our dreams instruct us fully and unambiguously.

The strongest knowledge (that of the total freedom of the human will) is nonetheless the poorest in successes: for it always has the strongest opponent, human vanity.

'God himself cannot exist without wise men' - Luther said, and was right. But 'God can exist even less without unwise men' - that good old Luther did not say.

I am not a human being, I am dynamite.

Man wishes woman to be peaceable, but in fact she is essentially warlike, like the cat.

The small force that it takes to launch a boat into the stream should not be confused with the force of the stream that carries it along: but this confusion appears in nearly all biographies.

Without the perpetual counterfeiting of the universe by number, man could not continue to live