The numbers of distinct human societies or nations, when our race is twice its present age, may be far greater than the total number of all the men who have ever lived up to the present time.

We over estimate technology in the short term and under estimate technology in the long term.

Floyd could imagine a dozen things that could go wrong; it was little consolation that it was always the thirteenth that actually happened.

I don't believe in astrology; I'm a Sagittarius and we're skeptical.

Mars is the next frontier, what the Wild West was, what America was 500 years ago. It's time to strike out anew....Mars is where the action is for the next thousand years....The characteristic of human nature, and perhaps our simian branch of the family, is curiosity and exploration. When we stop doing that, we won't be humans anymore. I've seen far more in my lifetime than I ever dreamed. Many of our problems on Earth can only be solved by space technology....The next step is in space. It's inevitable.

Absolutely no religious rites of any kind, relating to any religious faith, should be associated with my funeral.

Our lifetime may be the last that will be lived out in a technological society.