A state-of-the-art calculation requires 100 hours of CPU time on the state-of-the-art computer, independent of the decade.

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

There is a time for scientists and movie stars and those who have flown the atlantic to restrain their opinions lest they be taken more seriously than they should be.

In the history of physics, there have been three great revolutions in thought that first seemed absurd yet proved to be true. The first proposed that the earth, instead of being stationary, was moving around at a great and variable speed in a universe that is much bigger than it appears to our immediate perception. That proposal, I believe, was first made by Aristarchos two millenia ago ... Remarkably enough, the name Aristarchos in Greek means best beginning.

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.

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

Science attempts to find logic and simplicity in nature. Mathematics attempts to establish order and simplicity in human thought.