Don't ask for guarantees. And don't look to be saved in any one thing, person, machine, or library. Do your own bit of saving, and if you drown, at least die knowing you were heading for shore.

We should go to the moon and prepare a base to fire a rocket off to Mars and then go to Mars and colonize Mars. Then when we do that, we will live forever.

People ask me to predict the future, when all I want to do is prevent it. Better yet, build it. Predicting the future is much too easy, anyway. You look at the people around you, the street you stand on, the visible air you breathe, and predict more of the same. To hell with more. I want better.

Only if the third necessary thing could be given us. Number one, as I said: quality of information. Number two: leisure to digest it. And number three: the right to carry out actions based on what we learn from the interaction of the first two.

[He] was always here to offer cups of good clear Walden Pond, or shout down the deep well of Shakespeare and listen, with satisfaction, for echoes. Here the lion and the hartebeest lay together, here the jackass became a unicorn.

Facts quite often, I fear to confess, like lawyers, put me to sleep at noon. Not theories, however. Theories are invigorating and tonic. Give me an ounce of fact and I will produce you a ton of theory by tea this afternoon. That is, after all, my job.

First, find out what your hero wants, then just follow him.