Art should be dangerous - not physically dangerous, but dangerous to ideas.

You are stronger than you think.

The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.

True leaders must dare to take responsibility and make decisions.

Technology is nothing. What's important is that you have a faith in people, that they're basically good and smart, and if you give them tools, they'll do wonderful things with them.