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.

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.

For most of the time carrier aviation is more challenging than flying in a spacecraft

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.

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

The Earth from here is a grand oasis in the big vastness of space.