A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear arms, shall not be infringed. - Second Amendment to the Constitution An armed society is a polite society.

In this complex world, the scientific method, and the consequences of the scientific method are central to everything the human race is doing and to wherever we are going.

A prude is a person who thinks that his own rules of propriety are natural laws.

Churches thrive on martyrdom and persecution.

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.

At least once every human should have to run for his life, to teach him that milk does not come from supermarkets, that safety does not come from policemen, that 'news' is not something that happens to other people. He might learn how his ancestors lived and that he himself is no different--in the crunch his life depends on his agility, alertness, and personal resourcefulness.

Your enemy is never a villain in his own eyes.