Mars is empty now. Five hundred years from now, it'll be full of people.

The moon is a good, solid base to build a space travel organization in the community.

Thus through half-belief, we are often doomed to repeat that very past we should have learned from.

You've got to jump off cliffs and build your wings on the way down.

I came on the old and best ways of writing through ignorance and experiment and was startled when truths leaped out of brushes like quail before gunshot.

It didn't come from the Government down. There was no dictum, no declaration, no censorship, to start with, no! Technology, mass exploitation, and minority pressure carried the trick, thank God.

Looking back over a lifetime, you see that love was the answer to everything.