It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn't feel like a giant. I felt very, very small.

Research is creating new knowledge.

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

Geologists have a saying - rocks remember.

Here men from the planet Earth first set foot upon the Moon. July 1969 AD. We came in peace for all mankind.

This is one small step for a man, one giant leap for mankind.

We had hundreds of thousands of people all dedicated to doing the perfect job, and I think they did about as well as anyone could ever have expected.

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.

I was elated, ecstatic and extremely surprised that we were successful.

I fully expected that, by the end of the century, we would have achieved substantially more than we actually did.

The one thing I regret was that my work required an enormous amount of my time, and a lot of travel.

Yeah, I wasn't chosen to be first. I was just chosen to command that flight. Circumstance put me in that particular role. That wasn't planned by anyone.

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.

As a boy, because I was born and raised in Ohio, about 60 miles north of Dayton, the legends of the Wrights have been in my memories as long as I can remember.

I believe every human has a finite number of heartbeats. I don't intend to waste any of mine.

Mystery creates wonder and wonder is the basis of man's desire to understand.

If that's there, I believe that technology will probably step up to their part of it.

Houston, Tranquillity Base here. The Eagle has landed.

Pilots take no special joy in walking. Pilots like flying.

In much of society, research means to investigate something you do not know or understand.

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

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.

I think we're going to the moon because it's in the nature of the human being to face challenges. It's by the nature of his deep inner soul... we're required to do these things just as salmon swim upstream.

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

It suddenly struck me that that tiny pea, pretty and blue, was the Earth. I put up my thumb and shut one eye, and my thumb blotted out the planet Earth. I didn't feel like a giant. I felt very, very small.

I guess we all like to be recognized not for one piece of fireworks, but for the ledger of our daily work.

The Eagle has landed.

I put up my thumb and it blotted out the planet Earth.

I am, and ever will be, a white socks, pocket protector, nerdy engineer.

People love conspiracy theories.

That's one small step for a man, one giant leap for mankind.

In flying, the probability of survival is inversely proportional to the angle of arrival.

Here men from the planet Earth first set foot upon the Moon July 1969, A.D. We came in peace for all mankind.

Mystery creates wonder and wonder is the basis of mans desire to understand.

Geologists have a saying rocks remember.

NASA has been one of the most successful public investments in motivating students to do well and achieve all they can achieve. It's sad that we are turning the programme in a direction where it will reduce the amount of motivation and stimulation it provides to young people.

There can be no great accomplishment without risk.

The view of the moon that we've been having recently is really spectacular. It fills about three-quarters of the hatch window, and of course we can see the entire circumference even though part of it is in complete shadow and part of it is in earthshine. It's a view worth the price of the trip.

Mystery creates wonder and wonder is the basis of man’s desire to understand.

The French are the wittiest, the most charming, and up to the present, at all events, the least musical race on Earth.

My life has been a continuous fulfillment of dreams. It appears that everything I saw and did has a new, and perhaps, more significant meaning, every time I see it. The earth is good. It is a privilege to live thereon.

I believe as human beings we are out of balance, out of synch with the earth.

We are put on this earth to have a good time. This makes other people feel good. And the cycle continues.

All men are by nature equal, made all of the same earth by one Workman; and however we deceive ourselves, as dear unto God is the poor peasant as the mighty prince.

Infuse your life with action. Don't wait for it to happen. Make it happen. Make your own future. Make your own hope. Make your own love. And whatever your beliefs, honor your creator, not by passively waiting for grace to come down from upon high, but by doing what you can to make grace happen... yourself, right now, right down here on Earth.

You know, if you hang around this earth long enough you really see how things come full circle.

With a firm and steadfast mind one should hold under all conditions, that everywhere the earth is below and the sky above, and to the energetic man, every region is his fatherland.

A time will come when men will stretch out their eyes. They should see planets like our Earth.

When I say artist I mean the man who is building things - creating molding the earth - whether it be the plains of the west - or the iron ore of Penn. It's all a big game of construction - some with a brush - some with a shovel - some choose a pen.