No man should escape our universities without knowing how little he knows.

The atomic bomb made the prospect of future war unendurable. It has led us up those last few steps to the mountain pass; and beyond there is a different country.

In a free world, if it is to remain free, we must maintain, with our lives if need be, but surely by our lives, the opportunity for a man to learn anything

When you see something that is technically sweet you go ahead and do it.

To try to be happy is to try to build a machine with no other specification than that it shall run noiselessly.

The people of this world must unite or they will perish.

It is perfectly obvious that the whole world is going to hell. The only possible chance that it might not is that we do not attempt to prevent it from doing so.