When I circled the moon and looked back at Earth, my outlook on life and my viewpoint of Earth changed... Earth is a spaceship, just like Apollo - and just like Apollo, the crew must learn to live and work together. We must learn to manage the resources of this world with new imagination.

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

Houston, we've had a problem here.

I never thought I didn't have a card to play.

Be thankful for problems. If they were less difficult, someone with less ability might have your job.

The Moon is essentially gray - no color - looks like plaster of paris - soft of gray sand.

You need to be a person who makes things happen.