The extinction of the human race will come from its inability to EMOTIONALLY comprehend the exponential function.

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

Really exotic methods of propulsion . . . will have to be devised to get there. How it will be done, I do not know. Whether it will be done, I am not quite certain. But I would bet it can be done.

[Chemistry] laboratory work was my first challenge. ... I still carry the scars of my first discovery-that test-tubes are fragile.

Two paradoxes are better than one they may even suggest a solution.

Society's emissions of carbon dioxide may or may not turn out to have something significant to do with global warming-the jury is still out.

U.S. has lost a battle more important and greater than Pearl Harbor.