Old people think young people haven't learned about love. Young people think old people have forgotten about love.

Working ten hour days allows you to fall behind twice as fast as you could working five hour days.

Unfortunately, in many cases, people who write science fiction violate the laws of nature, not because they want to make a point, but because they don't know what the laws of nature are.

And [Asimov]'ll sign anything, hardbacks, softbacks, other people's books, scraps of paper. Inevitably someone handed him a blank check on the occasion when I was there, and he signed that without as much as a waver to his smile — except that he signed: 'Harlan Ellison.

The vast majority, who believe in astrology and think that the planets have nothing better to do than form a code that will tell them whether tomorrow is a good day to close a business deal or not, become all the more excited and enthusiastic.

I never considered myself a patriot. I like to think I recognize only humanity as my nation.

I figure that if God actually does exist, he is big enough to understand an honest difference of opinion.