What are the best things and the worst things in your life, and when are you going to get around to whispering or shouting them?

Writing is not a serious business. It’s a joy and a celebration. You should be having fun with it.

Fantasies are things that can't happen, and science fiction is about things that can happen.

There's no use going to school unless your final destination is the library.

Television is very dangerous. Because it repeats and repeats and repeats our disasters, instead of our triumphs.

The very first experiments with building rockets and firing them off were carried out by students at Cal Tech in 1937, '38 and '39. And later these people put together these jet propulsion labs in Pasadena and wound up sending aircraft and spacecraft to the moon. So it all began very primitively with love.

Time is so strange and life is twice as strange.