It's a vast, lonely, forbidding expanse of nothing rather like clouds and clouds of pumice stone. And it certainly does not appear to be a very inviting place to live or work.

Capitalism without bankruptcy is like Christianity without hell.

When you're finally up on the moon, looking back at the earth, all these differences and nationalistic traits are pretty well going to blend and you're going to get a concept that maybe this is really one world and why the hell can't we learn to live together like decent people?

We have to earn our Wings every day.

[The Moon] was a sobering sight, but it didn't have the impact on me, at least, as the view of the Earth did.

A superior pilot uses his superior judgment to avoid situations which require the use of his superior skill.

And from the crew of Apollo 8, we close with good night, good luck, a Merry Christmas, and God bless all of you - all of you on the good Earth.