When you get to the end of all the light you know and it's time to step into the darkness of the unknown, faith is knowing that one of two things shall happen: either you will be given something solid to stand on, or you will be taught how to fly.
The science of today is the technology of tomorrow.
Had we not pursued the hydrogen bomb, there is a very real threat that we would now all be speaking Russian. I have no regrets.
A fact is a simple statement that everyone believes. It is innocent, unless found guilty. A hypothesis is a novel suggestion that no one wants to believe. It is guilty, until found effective.
Life improves slowly and goes wrong fast, and only catastrophe is clearly visible.
Two paradoxes are better than one; they may even suggest a solution.
Physics is, hopefully, simple. Physicists are not.
No endeavor that is worthwhile is simple in prospect; if it is right, it will be simple in retrospect.
Secrecy, once accepted, becomes an addiction.
The main purpose of science is simplicity and as we understand more things, everything is becoming simpler.
I tried to contribute to the defeat of the Soviets. If I contributed 1%, it is 1% of something enormous.