When World War II came along, which was when I was a teenager, we all expected we would have anthrax bombs and this kind of stuff. We thought it would be a biological war. Fortunately it wasn't and, but it's because the danger is still there and by some miracle we escaped all that, so you never can tell what it going to happen, but biology certainly could be even worse than physics and chemistry.

I have the freedom to do what I want... bright people to talk to every day.

Most of what we see in the universe is dust.

I just enjoy calculating, and it's an instrument I know how to play. It's almost an athletic performance, in a way. I was just watching the Olympics, and that's how I feel when proving a theorem.

There is a great satisfaction in building good tools for other people to use.

It's us that's really amazing.

We should try to introduce our children to science today as a rebellion against poverty and ugliness and militarism and economic injustice.