I was given permission to serve myself Communion, with wine and a wafer, on the surface on the Moon. But I was advised not to say anything about it at the time. Someone had strongly objected to the Apollo 8 crew reading from the Bible. We didn't want to get into any further trouble with the religious critics.
At the core of the risk-free society is a self-indulgent failure of nerve.
My first biography written in '73 was not 'Journey To The Moon.' It was 'Return To Earth.' Because for me, that was the more difficult task - disappointment.
When I am getting ready to cross a street, I look both ways before crossing. My bones, my muscles, are not what they used to be, so I am careful when I go up and down stairs, because I've heard stories of older people falling and having very disabling injuries. I have enough things that begin to go a little bit wrong as I get a little bit older.
Space is not just going up and coming back down again. Space is getting into orbit and being there, living there, establishing a presence, a permanence.
Unfortunately, kids are led to believe things are easier to achieve than they really are.
The pilgrims on the Mayflower landed at Plymouth Rock. To my knowledge, they didn't wait around for a return trip to Europe. You settle some place with a purpose. If you don't want to do that, stay home. You avoid an awful lot of risks by not venturing outward.
I really hate to be put in the position of trying to justify something, a decision that was made. I'm a military guy: when a decision is made, I go along with it, whatever the manufactured controversy and criticism.
My favourite thing to do on this planet is to scuba dive.
I inherited depression from my mother's side of the family. Her father committed suicide. She committed suicide the year before I went to the moon.
It's been one of the greatest challenges that ever came along in my life; it was one of the more difficult things to do.
I am definitely not rich.
Over the years, I think I've matured in my spiritual evolution and development to understand a bit more than the narrow religious thinking - to move beyond that through a sort of perfection of the grandiose nature of the universe, and how perfect it is it in its sense and how satisfied we should all be in our place in that.
Any observations from the Moon or a sense of realising this or that about the greater meaning of things wasn't as influential for me as the experience of coming back and dealing with being a person who's been to the Moon.
Everyone should take their hats off to Neil Armstrong. He is a humble guy who doesn't wave his own flag.
I poured the wine into the chalice our church had given me. In the one-sixth gravity of the moon the wine curled slowly and gracefully up the side of the cup. It was interesting to think that the very first liquid ever poured on the moon, and the first food eaten there, were communion elements.
As a student, I wrote English reports on science fiction.
When you're in a spacecraft, you need to know what things you can touch and what things you shouldn't touch!
The beauty of Hawaii probably surpasses other places. I like the Big Island and the two mountains, Mauna Loa and Mauna Kea, where you can look out at the stars.
I want to keep on the move, keep stimulated and challenged.
Apollo 11 will probably go down in history as one of the major responses of two nations facing each other with threatening technologies - sometimes called mutually assured destruction. It was also the America's response to the apparent superiority of the Russians in putting objects into space before USA could.
Unfortunately, pioneers will always pave the way with sacrifices.
There are a lot of reasons for not doing something. And if humanity had come up with all the reasons for not doing something we wouldn't have spread across the Earth the way we have. There's a curiosity, and I would submit that that curiosity will put human beings on the surface of Mars.
America must dream again, and have the faith to achieve the dream.
It's time to open the space frontier to citizen explorers.
