Science condemns itself to failure when, yielding to the infatuation of the serious, it aspires to attain being, to contain it, and to possess it; but it finds its truth if it considers itself as a free engagement of thought in the given, aiming, at each discovery, not at fusion with the thing, but at the possibility of new discoveries; what the mind then projects is the concrete accomplishment of its freedom.

Living by proxy is always a precarious expedient.

If you haven't been happy very young, you can still be happy later on, but it's much harder. You need more luck.

It is not mere chance that makes families speak of a child who is 'extraordinary for his age' and also of an old man who is 'extraordinary for his age'; the extraordinariness lies in their behaving like human beings when they are either not yet or no longer men.

History is a great cemetery: men, deeds, ideas are always dying as soon as they are born.

She was ready to deny the existence of space and time rather than admit that love might not be eternal.

My worst mistake has been not grasping that time goes by. It was going by and there I was, set in the attitude of the ideal wife of an ideal husband. Instead of bringing our sexual relationship to life again I brooded happily over memories of our former nights together.