Reason is poor propaganda when opposed by the yammering, unceasing lies of shrewd and evil and self-serving men.

My old man says when it's time to be counted, the important thing is to be man enough to stand up.

Your enemy is never a villain in his own eyes. Keep this in mind; it may offer a way to make him your friend. If not, you can kill him without hate — and quickly.

When a place gets crowded enough to require ID's, social collapse is not far away. It is time to go elsewhere. The best thing about space travel is that it made it possible to go elsewhere.

Library Science is the key to all science, just as mathematics is its language - and civilization will rise or fall, depending on how well librarians do their jobs.

Man can be chained, but he cannot be domesticated.

And suddenly I knew I was people and could not stop laughing.