In order always to learn something from others (which is the finest school there can be), I observe in my travels this practice: I always steer those with whom I talk back to the things they know best.

Since philosophy is the art which teaches us how to live, and since children need to learn it as much as we do at other ages, why do we not instruct them in it? .. But in truth I know nothing about the philosophy of education except this: that the greatest and the most important difficulty known to human learning seems to lie in that area which treats how to bring up children and how to educate them.

The easy, gentle, and sloping path . . . is not the path of true virtue. It demands a rough and thorny road.

We have power over nothing except our will.

Traveling through the world produces a marvelous clarity in the judgment of men. We are all of us confined and enclosed within ourselves, and see no farther than the end of our nose. This great world is a mirror where we must see ourselves in order to know ourselves. There are so many different tempers, so many different points of view, judgments, opinions, laws and customs to teach us to judge wisely on our own, and to teach our judgment to recognize its imperfection and natural weakness.

My trade and my art is living. He who forbids me to speak about it according to my sense, experience, and practice, let him orderthe architect to speak of buildings not according to himself but according to his neighbor; according to another man's knowledge, not according to his own.

I study myself more than any other subject. That is my metaphysics, that is my physics.