Our civilization is flinging itself to pieces. Stand back from the centrifuge.

Collecting facts is important. Knowledge is important. But if you don't have an imagination to use the knowledge, civilization is nowhere.

We've gotta become the Martians. I'm a Martian - I tell you to become Martians. And we've gotta go to Mars and civilize Mars and build a whole civilization on Mars and then move out, 300 years from now into the universe. And when we do that, we have a chance of living forever.

It's lack that gives us inspiration. It's not fullness.

If you want to be a good writer, be the best writer in the world. That's what I've done.

Living at risk is jumping off the cliff and building your wings on the way down.