We should go boldly where man has not gone before. Fly by the comets, visit asteroids, visit the moon of Mars. There's a monolith there. A very unusual structure on this potato shaped object that goes around Mars once in seven hours. When people find out about that they're going to say 'Who put that there? Who put that there?' The universe put it there. If you choose, God put it there.

Nobody ever asks who was the seventh person on the Moon. The only thing they know is who's number one and who's number two. Does anybody know who the last man was?

I think there would be no shortage of applicants to the government astronaut corps to be settlers on the planet Mars. And I think this would be very inspiring.

I shot down two airplanes in Korea, so I wasn't a slouch.

Look at what Silicon Valley has done - the advance of computers.

I'm sure that there are places in the deserts in Australia that could be similar to where we might want to go on Mars.

What comes after the moon? I think you can guess: Mars.