I am, and ever will be, a white-socks, pocket-protector, nerdy engineer - born under the second law of thermodynamics, steeped in steam tables, in love with free-body diagrams, transformed by Laplace, and propelled by compressible flow.

Now and then I miss the excitement about being in the cockpit of an airplane and doing new things.

The regret on our side is, they used to say years ago, we are reading about you in science class. Now they say, we are reading about you in history class.

I guess we all like to be recognized not for one piece of fireworks but for the ledger of our daily work.

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

No matter when you had been to this spot before, a thousand years ago or a hundred thousand years ago, or if you came back to it a million years from now, you would see some different things each time, but the scene would be generally the same.

I suspect that even though the various questions are difficult and many, they are not as difficult and many as those we faced when we started the Apollo [space program] in 1961.