As a result of reading science fiction when I was eight, I grew up with an interest in music, architecture, city planning, transportation, politics, ethics, aesthetics on any level, art...it's just total! It's a complete commitment to the whole human race on all the Earth. That's what science fiction is about.

Some people turn sad awfully young. No special reason, it seems, but they seem almost to be born that way. They bruise easier, tire faster, cry quicker, remember longer and, as I say, get sadder younger than anyone else in the world. I know, for I'm one of them.

A book is a loaded gun.

We cannot tell the precise moment when friendship is formed. As in filling a vessel drop by drop, there is at last a drop which makes it run over; so in a series of kindnesses there is at last one which makes the heart run over.

So few want to be rebels anymore. And out of those few, most, like myself, scare easily.

Love is easy, and I love writing. You can't resist love. You get an idea, someone says something, and you're in love.

Mars is empty now. Five hundred years from now, it'll be full of people.