I repeat Sturgeon's Revelation, which was wrung out of me after twenty years of wearying defense of science fiction against attacks of people who used the worst examples of the field for ammunition, and whose conclusion was that ninety percent of it is crud.

Inner space is so much more interesting, because outer space is so empty.

No man can rob successfully over a period of years without pleasing the people he robs.

You must write to the people's expertise.

They say dogs ignore their reflections in mirrors because they can't smell them. Dogs, unlike people, are not fooled by what they see.

Here's the point to be made - there are no synonyms. There are no two words that mean exactly the same thing.

The first writing I did was short short stories for a newspaper syndicate for which I was paid five dollars a piece on publication.