The lunar flights give you a correct perception of our existence. You look back at Earth from the moon, and you can put your thumb up to the window and hide the Earth behind your thumb. Everything youve ever known is behind your thumb, and that blue-and-white ball is orbiting a rather normal star, tucked away on the outer edge of a galaxy.

Err Houston, we've had a problem. [pause] We've had a main B bus undervolt.

The real friends of the space voyager are the stars. Their friendly, familiar patterns are constant companions, unchanging, out there.

Please be informed, there is a Santa Claus.

We learned a lot about the Moon, but what we really learned was about the Earth. The fact that just from the distance of the Moon you can put your thumb up and you can hide the Earth behind your thumb. Everything that you've ever known, your loved ones, your business, the problems of the Earth itself-all behind your thumb. And how insignificant we really all are, but then how fortunate we are to have this body and to be able to enjoy loving here amongst the beauty of the Earth itself.

Houston, we've had a problem here.

You need to be a person who makes things happen.