The main purpose of science is simplicity and as we understand more things, everything is becoming simpler.

When Columbus took off, the purpose was to improve trade relations with China. That problem has not been solved to this very day, but just look at the by-products.

No endeavor that is worthwhile is simple in prospect; if it is right, it will be simple in retrospect.

One may say that predictions are dangerous particularly for the future. If the danger involved in a prediction is not incurred, no consequence follows and the uncertainty principle is not violated.

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.

I tried to contribute to the defeat of the Soviets. If I contributed 1%, it is 1% of something enormous.

Today's science is tomorrow's technology.