The most difficult thing in the world is to say thinkingly what everybody says without thinking.

We prove what we want to prove, and the real difficulty is to know what we want to prove.

I have only one thing to say to the melancholy man: 'Look into the distance.' ... When you look at the stars or the ocean's expanse, your eye is completely relaxed; once your eye is relaxed, your mind is unfettered.

There is a future that makes itself and a future we make. The real future is composed of both.

What is a thousand years? Time is short for one who thinks, endless for one who yearns.

There are only two kinds of scholars; those who love ideas and those who hate them.

Wouldn't a sailor laugh at you if you told him that the whole crossing depends on the first turn of the helm?