A good engineer gets stale very fast if he doesn't keep his hands dirty.

A good engineer gets stale very fast if he doesn't keep his hands dirty.

There are flying grandfathers. But I intend to be an orbiting grandfather.

By the year 2000 we will undoubtedly have a sizable operation on the Moon, we will have achieved a manned Mars landing and it's entirely possible we will have flown with men to the outer planets.

We should remember that science exists only because there are people, and its concepts exist only in the minds of men. Behind these concepts lies the reality which is being revealed to us, but only by the grace of God.

Science does not have a moral dimension. It is like a knife. If you give it to a surgeon or a murderer, each will use it differently.

Get me a broom. I'll sweep my own office.