I believe that every human has a finite number of heartbeats. I don't intend to waste any of mine running around doing exercises.

I think if there was anything I learned from our skipper was that it's not how you look; it's how you perform.

It's a brilliant surface in that sunlight. The horizon seems quite close to you because the curvature is so much more pronounced than here on earth. It's an interesting place to be. I recommend it.

I like the aspect of technology. For me to spin the way I do, I would have to carry five crates of records with me everywhere I go, which in this day and age would be like two hundred extra dollars in baggage fees. All I need now is a hard drive and a computer and I can rock anywhere in the world.

I believe that the message of Apollo XI was that in the spirit of Apollo, a free and open spirit, you can attack a very difficult goal and achieve it, if you can all agree and work together to achieve that goal.

The view of the moon that we've been having recently is really spectacular. It fills about three-quarters of the hatch window, and of course we can see the entire circumference even though part of it is in complete shadow and part of it is in earthshine. It's a view worth the price of the trip.

It's a strange, eerie sensation to fly a lunar landing trajectory not difficult, but somewhat complex and unforgiving.