Life has meaning only if one barters it day by day for something other than itself.

And now here is my secret, a very simple secret; it is only with the heart that one can see rightly, what is essential is invisible to the eye.

No one is ever satisfied where he is.

To forget a friend is sad. Not everyone has had a friend.

A civilization is a heritage of beliefs, customs, and knowledge slowly accumulated in the course of centuries, elements difficult at times to justify by logic, but justifying themselves as paths when they lead somewhere, since they open up for man his inner distance.

Freedom and constraint are two aspects of the same necessity, which is to be what one is and no other.

He sat down. I sat down next to him. And after a silence, he spoke again. 'The stars are beautiful because of a flower you don't see...' I answered, 'Yes, of course.