I took up writing because I needed money. And I continued to write because it's safer than stealing and easier than working.

I don't see why human people make such a heavy trip out of sex. It isn't anything complex, it is simply the best thing in life, even better than food.

Many short-sighted fools think that going to the Moon was just a stunt. But the astronauts knew the meaning of what they were doing, as is shown by Neil Armstrong's first words in stepping down onto the soil of Luna: "One small step for a man, one giant leap for mankind."

There is no conclusive evidence of life after death, but there is no evidence of any sort against it. Soon enough you will know, so why fret about it?

By the data to date, there is only one animal in the Galaxy dangerous to man -- man himself. So he must supply his own indispensable competition. He has no enemy to help him.

A critic is a man who creates nothing and thereby feels qualified to judge the work of creative men. There is logic in this; he is unbiased, he hates all creative people equally.

...a book need never die and should not be killed; books were the immortal part of man.