If you love people you criticize them, and if you don't love them you don't criticize them, you let them go to hell, don't you? To help any kind of friendship, your marriage, your children, you criticize because you love.

I have fun with ideas; I play with them.

This is the result of six billion years of evolution. Tonight, we have given the lie to gravity.We have reached for the stars.

I can write faster on a typewriter than you can on a computer. I do 120 words a minute, and you can't do that on a computer.

It's not going to do any good to land on Mars if we're stupid.

Impossible; for how many people did you know who refracted your own light to you?

The years go by. The time, it does fly. Every single second is a moment in time that passes. And it seems like nothing - but when you're looking back ... well, it amounts to everything.