The shamans are forever yacking about their snake oil miracles. I prefer the real McCoy, a pregnant woman.

The police of a state should never be stronger or better armed than the citizenry. An armed citizenry, willing to fight, is the foundation of civil freedom. That's a personal evaluation, of course.

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.

Revolution is an art that I pursue rather than a goal I expect to achieve. Nor is this a source of dismay; a lost cause can be as spiritually satisfying as a victory.

Spacemen die if they stay in one place.

The more you love, the more you can love - and the more intensely you love.

Being sorry won't get you into heaven. Get happy, son. Get that old spring into your step and stay on your toes.