Jim Lovell

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

There are people who make things happen, there are people who watch things happen, and there are people who wonder what happened. To be successful, you need to be a person who makes things happen.

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 you've 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.

From now on we live in a world where man has walked on the Moon. It's not a miracle; we just decided to go.