The single thing which makes any man happiest is the realization that he has worked up to the limits of his ability, his capacity. It's all the better, of course, if this work has made a contribution to knowledge, or toward moving the human race a little farther forward.

Good luck, Mr. Gorsky!

Well, I think we tried very hard not to be overconfident, because when you get overconfident, that's when something snaps up and bites you.

I am, and ever will be, a white-socks, pocket-protector, nerdy engineer.

A picture does a great job, but it's not nearly like being there.

Here men from the planet Earth first set foot upon the Moon. July 1969 AD. We came in peace for all mankind.

It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn't feel like a giant. I felt very, very small.