The only justifiable purpose of political institutions is to ensure the unhindered development of the individual.

God is clever, but not dishonest.

With fame I become more and more stupid, which of course is a very common phenomenon.

We all try to escape pain and death, while we seek what is pleasant.

The foundation of morality should not be made dependent on myth nor tied to any authority lest doubt about the myth or about the legitimacy of the authority imperil the foundation of sound judgment and action.

I appeal to all men and women, whether they be eminent or humble, to declare that they will refuse to give any further assistance to war or the preparation of war.

I don't teach my students, I provide the circumstances in which they can learn.