We don't know how to live together on Earth, how the hell are we going to live together on Mars?

The more intelligent our children, the better our lives and the richer our culture will be.

I didn't want to teach my kid how to read, so I used to read to him at night and close the book at the most interesting part. He said, “What happened then, daddy?” I said, “If you learn to read, you can find out. I'm too tired to read. I'll read to you tomorrow.” So, he had a need to want to learn how to read. Don't teach children how to read. Don't teach them mathematics. Give them a reason to want it. In school, they're working ass-backwards.

As long as you have war, police, prisons, crime, you are in the early stages of civilization.

The only limitations are those which we impose upon ourselves.

War is the supreme failure of bridging the differences between nations.

We must look at alternatives objectively, and not try to fit the future into our present social mould.