Writing is a lonely job. Even if a writer socializes regularly, when he gets down to the real business of his life, it is he and his type writer or word processor. No one else is or can be involved in the matter.

The greatest inventors are unknown to us. Someone invented the wheel - but who?

I have written 240 books on a wide variety of topics. . . . Some of it I based on education I received in my school, but most of it was backed by other ways of learning - chiefly in the books I obtained in the public library.

The dangers that face the world can, every one of them, be traced back to science. The salvations that may save the world will, every one of them, be traced back to science.

Never judge your own writing. You're not fit to do so.

To test a perfect theory with imperfect instruments did not impress the Greek philosophers as a valid way to gain knowledge.

A neat and orderly laboratory is unlikely. It is, after all, so much a place of false starts and multiple attempts.