I grew up in a country that I thought was special. And it was.

Weve got to go [back to the moon]. But we dont want to stay too long. ... The ultimate goal is Mars.

America can take man to the moon, and America can take men to Mars - and beyond.

The biggest benefit of Apollo was the inspiration it gave to a growing generation to get into science and aerospace.

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

I was the first Navy, Marine or Air Force person who had been an astronaut to return back to the Air Force. I had certain expectations about what would be a reasonable and desirable position to be assigned to after my years of service.

I have no doubt that humans will go to Mars. And I feel that America has led so many things in space - we have invested so much, and we have a lot to gain - that America could and should be the nation that should lead the settlement of Mars.