Science is not everything, but science is very beautiful.

The powerful notion of entropy, which comes from a very special branch of physics … is certainly useful in the study of communication and quite helpful when applied in the theory of language.

In the material sciences these are and have been, and are most surely likely to continue to be heroic days.

Any man whose errors take ten years to correct is quite a man.

Taken as a story of human achievement, and human blindness, the discoveries in the sciences are among the great epics.

Now I am become death, the destroyer of worlds. (quoting the Bhagavad-Gita after witnessing the first Nuclear explosion.)

When you see something that is technically sweet, you go ahead and do it and you argue about what to do about it only after you have had your technical success. That is the way it was with the atomic bomb.