Don't handicap your children by making their lives easy.

A great artist can look at an old woman, portray her exactly as she is ... and force the viewer to see the pretty girl she used to be ... more than that, he can make anyone with the sensitivity of an armadillo see that this lovely young girl is still alive

Almost everything about a human creature is ridiculous, except its ability to suffer bravely and die gallantly for whatever it loves and believes in. The validity of that belief, the appropriateness of that love, is irrelevant; it is the bravery and the gallantry that count.

No intelligent man has any respect for an unjust law.

Like every living thing its prime characteristic is a blind, unreasoned instinct to survive.

I think that science fiction has a distinct therapeutic value because all of it has as its primary postulate that the world does change. I cannot overemphasize the importance of that idea.

We have our hands, we have our brains, we have the challenge all around us, and we have within (from whatever source) the will to strive. That is enough; there is no need to assert 'belief' in that which we do not, as yet, know.