To develop working ideas efficiently, I try to fail as fast as I can.

I'm trying to find out NOT how Nature could be, but how Nature IS.

I think Nature's imagination is so much greater than man's, she's never gonna let us relax!

When a Caltech student asked the eminent cosmologist Michael Turner what his "bias" was in favoring one or another particle as a likely candidate to compromise dark matter in the universe, Feynmann snapped, "Why do you want to know his bias? Form your own bias!"

Scientists are explorers. Philosophers are tourists.

Only realistic flight schedules should be proposed, schedules that have a reasonable chance of being met. If in this way the government would not support them, then so be it. NASA owes it to the citizens from whom it asks support to be frank, honest, and informative.

The inside of a computer is as dumb as hell but it goes like mad!