You don't read in your own field. You read in that field when you're young, so that you can learn.

Hollywood was a good influence because I was madly in love with films, and the films had a direct influence on me.

I would not see our candle blown out in the wind. It is a small thing, this dear gift of life handed us mysteriously out of immensity. I would not have that gift expire... If I seem to be beating a dead horse again and again, I must protest: No! I am beating, again and again, living man to keep him awake and move his limbs and jump his mind... What's the use of looking at Mars through a telescope, sitting on panels, writing books, if it isn't to guarantee, not just the survival of mankind, but mankind surviving forever!

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.

We've let too much time go by. We've been busy with war instead of being busy with peace. And that's what space travel is all about. It's all about peace and exploration and wonder and beauty.

Suddenly the day was gone, night came out from under each tree and spread.

Cram them full of non-combustible data, chock them so damned full of 'facts' they feel stuffed, but absolutely 'brilliant' with information. Then they’ll feel they’re thinking, they’ll get a sense of motion without moving. And they’ll be happy, because facts of that sort don’t change. Don’t give them any slippery stuff like philosophy or sociology to tie things up with. That way lies melancholy.