There are two ways of forming an opinion. One is the scientific method; the other, the scholastic. To the scientific mind, experimental proof is all-important, and theory is merely a convenience in description, to be junked when it no longer fits. To the academic mind, authority is everything, and facts are junked when they do not fit theory.

It is a truism that almost any sect, cult, or religion will legislate its creeds into law if it acquires the political power to do so, and will follow it by suppressing opposition, subverting all education to seize early the minds of the young, and by killing, locking up, or driving underground all heretics.

The basic of all morality is duty, a concept with the same relation to group that self-interest has to individual.

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.

The only thing privacy laws accomplish is making the bugs smaller.

No statement should be believed because it is made by an authority.

My folks tried to make a preacher of me and missed by a narrow margin… I would have made a good one if I hadn’t fallen into the fatal folly of reading anything I could lay hands on. With just a touch more self confidence and a liberal helping of ignorance I could have been a famous evangelist.