The important thing is to strive toward a goal which is not immediately visible. That goal is not the concern of the mind, but of the spirit.

Freedom and constraint are two aspects of the same necessity, the necessity of being the man you are and not another. You are free to be that man, but not another.

Friendship is born from an identity of spiritual goals - from common navigation toward a star.

One only really sees with the heart.

Perfection is not when there is no more to add, but no more to take away.

To become a man is to be responsible; to be ashamed of miseries that you did not cause.

Only the unknown frightens men. But once a man has faced the unknown, that terror becomes the known.