It will free man from the remaining chains, the chains of gravity which still tie him to this planet.

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

There is just one thing I can promise you about the outer-space program - your tax-dollar will go further.

Man belongs wherever he wants to go - and he'll do plenty well when he gets there.

Although I know of no reference to Christ ever commenting on scientific work, I do know that He said, "Ye shall know the truth, and the truth shall make you free." Thus I am certain that, were He among us today, Christ would encourage scientific research as modern man's most noble striving to comprehend and admire His Father's handiwork. The universe as revealed through scientific inquiry is the living witness that God has indeed been at work.

In 1492 Columbus knew less about the far Atlantic than we do about the heavens, yet he chose not to sail with a flotilla of less than three ships. . . . So it is with interplanetary exploration: it must be done on the grand scale.

I find it as difficult to understand a scientist who does not acknowledge the presence of a superior rationality behind the existence of the universe as it is to comprehend a theologian who would deny the advances of science.