When you come 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 to fly.

The science of today is the technology of tomorrow.

In the theater you create a moment, but in that moment, there is a touch, a twinkle of eternity. And not just eternity, but community. . . . That connection is a sense of life for me.

Physics is, hopefully, simple. Physicists are not.

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

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

Physics without mathematics is meaningless.