Life improves slowly and goes wrong fast, and only catastrophe is clearly visible.

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.

The science of today is the technology of tomorrow.

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

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.

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.

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