Work is the only thing that gives substance to life.

I have no special talent. I am only passionately curious. The important thing is to not stop questioning. Curiousity has its own reason for existing.

The human spirit must prevail over technology.

Mere thinking cannot reveal to us the highest purpose.

It would be possible to describe everything scientifically, but it would make no sense; it would be without meaning, as if you described a Beethoven symphony as a variation of wave pressure.

There is, however, a somber point in the social outlook of Americans. Their sense of equality and human dignity is mainly limited to people of white skin.... The more I feel like an American, the more the situation pains me.

You can't use an old map to explore a new world.