I think God is as much a basic ingredient in the universe as neutrons and positrons. This is the prime force, when we look around the universe.

A man either lives life as it happens to him, meets it head-on and licks it, or he turns his back on it and starts to wither away.

Ancient astronauts didn't build the pyramids. Human beings built the pyramids, because they're clever and they work hard.

For me science fiction is a way of thinking, a way of logic that bypasses a lot of nonsense. It allows people to look directly at important subjects.

There was much to put out of his mind. Why was it difficult to forget Chekov's astonished delight which greeted him at the command airlock when he boarded. And on the bridge - Kirk! The mere name made Spock groan inwardly as he remembered what it had cost him to turn away from that welcome. T'hy'la!

To be different is not necessarily to be ugly; to have a different idea is not necessarily to be wrong. The worst possible thing is for all of us to begin to look and talk and act and think alike.

I have always been reasonably leery of religion because there are so many edicts in religion, 'thou shalt not,' or 'thou shalt.' I wanted my world of the future to be clear of that.