The earth is like a spaceship that didn't come with an operating manual.

Humans beings always do the most intelligent thing…after they’ve tried every stupid alternative and none of them have worked

Every time man makes a new experiment he always learns more. He cannot learn less. He may learn that what he thought was true was not true. By the elimination of a false premise, his basic capital wealth which in his given lifetime is disembarrassed of further preoccupation with considerations of how to employ a worthless time-consuming hypothesis. Freeing his time for its more effective exploratory investment is to give man increased wealth.

We must start with scientific fundamentals, and that means with the data of experiments and not with assumed axioms predicated only upon the misleading nature of that which only superficially seems to be obvious. It is the consensus of great scientists that science is the attempt to set in order the facts of experience.

None of the world's problems will have a solution until the world's individuals become thoroughly self-educated.

When I'm working on a problem, I never think about beauty. I think only how to solve the problem.

There are over 2 million cars standing in front of red lights with their engines going. Then we have over 2 million times approximately 100 horsepower being generated as they are idling there, so that we have something like 200 million horses jumping up and down and going nowhere. Now, we have to count that in our economy when we begin to get down to what is the efficiency of the economy.