Physics without mathematics is meaningless.

Today's science is tomorrow's technology.

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

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.

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

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.

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