The important achievement of Apollo was demonstrating that humanity is not forever chained to this planet, and our visions go rather further than that, and our opportunities are unlimited.

It's a brilliant surface in that sunlight. The horizon seems quite close to you because the curvature is so much more pronounced than here on earth. It's an interesting place to be. I recommend it.

Science has not yet mastered prophecy. We predict too much for the next year and yet far too little for the next 10.

Gliders, sail planes, they're wonderful flying machines. It's the closest you can come to being a bird.

Well, I think we tried very hard not to be overconfident, because when you get overconfident, that's when something snaps up and bites you.

We would like to give special thanks to all those Americans who built the spacecraft; who did the construction, design, the tests, and put their hearts and all their abilities into those craft. To those people tonight, we give a special thank you, and to all the other people that are listening and watching tonight, God bless you. Good night from Apollo 11.

I believe that every human has a finite number of heartbeats. I don't intend to waste any of mine running around doing exercises.