I believe that this hairless embryo with the aching, oversize brain case and the opposable thumb, this animal barely up from the apes, will endure --will endure longer than his home planet, will spread out to the other planets, to the stars, and beyond, carrying with him his honesty, his insatiable curiosity, his unlimited courage --and his noble essential decency. This I believe with all my heart.

Ninety percent of all human wisdom is the ability to mind your own business.

Must be yearning deep in human heart to stop other people from doing as they please.

Nothing of value is free. Even the breath of life is purchased at birth only through gasping effort and pain.

Damnit! Nationalism should stop at the stratosphere!

The most important lesson in the writing trade is that any manuscript is improved if you cut away the fat.

I'm afraid of coaching, of writer's classes, of writer's magazines, of books on how to write. They give me centipede trouble - you know the yarn about the centipede who was asked how he managed all his feet? He tried to answer, stopped to think about it, and was never able to walk another step.