I've been asked about UFOs and I've said publicly I thought they were somebody else, some other civilization.

I do believe there is life in outer space. Mathematically, there has to be, and if you believe as I do that there is a creator of the universe, then how can we be so arrogant to believe he created life here and nowhere else?

Today, we are on a path of decay. We are seeing the book close on five decades of accomplishment as the leader in human space exploration.

It's our destiny to explore. It's our destiny to be a space-faring nation.

Get the shuttle out of the garage. It's in its prime of its life. How could we just put it away?

One of the most important things about the geology on the moon is your descriptions of what you see, comparing them to things that you've seen on Earth so that the geologists and the scientists on the ground would know what you're talking about; and then take pictures of them.

As I take man's last step from the surface, back home for some time to come...I'd like to just (say) what I believe history will record. That America's challenge of today has forged man's destiny of tomorrow. As we leave the Moon at Taurus- Littrow, we leave as we came and, God willing, as we shall return, with peace and hope for all mankind. "Godspeed the crew of Apollo 17."