"I put up my thumb and it blotted out the planet Earth." — Neil Armstrong

If that's there, I believe that technology will probably step up to their part of it.

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 fully expected that, by the end of the century, we would have achieved substantially more than we actually did.

I'm substantially concerned about the policy directions of the space agency. We have a situation in the U.S. where the White House and Congress are at odds over what the future direction should be. They're sort of playing a game and NASA is the shuttlecock that they're hitting back and forth.