The only real mistake is the one from which we learn nothing.

You laugh at me because I'm different, I laugh at you because you're all the same.

Let no man pull you low enough to hate him.

To a wise and good man the whole earth is his fatherland.

Experience is the only prophecy of wise men.

To do great things is difficult, but to command great things is more difficult.

A person who spends more than he earns is a fool

Madame, all stories, if continued far enough, end in death, and he is no true-story teller who would keep that from you.

Everything excellent is as difficult as it is rare.

There are four ways, and only four ways, in which we have contact with the world. We are evaluated and classified by these four contacts: what we do, how we look, what we say, and how we say it.

I dream. Sometimes I think that's the only right thing to do.

The lie is a condition of life.

Forget not that the earth delights to feel your bare feet and the winds long to play with your hair.

A wise man can learn more from a foolish question than a fool can learn from a wise answer.

Criticize the act, not the person.

Don't criticize what you can't understand.

Learned we may be with another man's learning: we can only be wise with wisdom of our own.

There is geometry in the humming of the strings. There is music in the spacing of the spheres.

Knowledge speaks, but wisdom listens

Those who dance are considered insane by those who cannot hear the music.

What a man does for others, not what they do for him, gives him immortality.