Where two principles really do meet which cannot be reconciled with one another, then each man declares the other a fool and a heretic

The common behavior of mankind is the system of reference by means of which we interpret an unknown language.

A serious and good philosophical work could be written consisting entirely of jokes.

Where our language suggests a body and there is none: there, we should like to say, is a spirit.

Genius is talent exercised with courage.

A new word is like a fresh seed sown on the ground of the discussion.

When we think about the future of the world, we always have in mind its being where it would be if it continued to move as we see it moving now. We do not realize that it moves not in a straight line and that its direction changes constantly.