It's not going to do any good to land on Mars if we're stupid.

• Science fiction is any idea that occurs in the head and doesn't exist yet, but soon will, and will change everything for everybody, and nothing will ever be the same again. As soon as you have an idea that changes some small part of the world you are writing science fiction. It is always the art of the possible, never the impossible.
• The best scientist is open to experience and begins with romance - the idea that anything is possible.
• If we listened to our intellect, we'd never have a love affair. We'd never have a friendship. We'd never go into business, because we'd be cynical. Well, that's nonsense. You've got to jump off cliffs all the time and build your wings on the way down.
• My business is to prevent the future.
• Science fiction is any idea that occurs in the head and doesn't exist yet, but soon will, and will change everything for everybody, and nothing will ever be the same again. As soon as you have an idea that changes some small part of the world you are writing science fiction. It is always the art of the possible, never the impossible.
• If you dream the proper dreams, and share the myths with people, they will want to grow up to be like you.
• I spent three days a week for 10 years educating myself in the public library, and it's better than college. People should educate themselves - you can get a complete education for no money. At the end of 10 years, I had read every book in the library and I'd written a thousand stories.
• If you know how to read, you have a complete education about life, then you know how to vote within a democracy. But if you don't know how to read, you don't know how to decide. That's the great thing about our country - we're a democracy of readers, and we should keep it that way.
• The best scientist is open to experience and begins with romance - the idea that anything is possible.
• If we listened to our intellect, we'd never have a love affair. We'd never have a friendship. We'd never go into business, because we'd be cynical. Well, that's nonsense. You've got to jump off cliffs all the time and build your wings on the way down.