No, life has not disappointed me. On the contrary, I find it truer, more desirable and mysterious every year -- ever since the day when the great liberator came to me: the idea that life could be an experiment of the seeker for knowledge -- and not a duty, not a calamity, not trickery.

If you have an enemy, do not requite him evil with good, for that would put him to shame. Rather prove that he did you some good.

The Christian faith from the beginning, is sacrifice the sacrifice of all freedom, all pride, all self-confidence of spirit, it is at the same time subjection, self-derision, and self-mutilation.

Wherever primitive man put up a word, he believed he had made a discovery. How utterly mistaken he really was! He had touched a problem, and while supposing he had solved it, he had created and obstacle to its solution. Now, with every new knowledge we stumble over flint-like and petrified words and, in so doing, break a leg sooner than a word.

Convictions are prisons.

My time has not yet come either; some are born posthumously.

There is an innocence in admiration; it is found in those to whom it has never yet occurred that they, too, might be admired some day.