“Now and then I miss the excitement about being in the cockpit of an airplane and doing new things.”

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

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

Opportunities will be available to you that you cannot imagine.

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.

He did it alone. We had a cast of a million.

No matter when you had been to this spot before, a thousand years ago or a hundred thousand years ago, or if you came back to it a million years from now, you would see some different things each time, but the scene would be generally the same.

Research is creating new knowledge.

The single thing which makes any man happiest is the realization that he has worked up to the limits of his ability, his capacity. It’s all the better, of course, if this work has made a contribution to knowledge, or toward moving the human race a little farther forward.

The single thing which makes any man happiest is the realization that he has worked up to the limits of his ability, his capacity. It’s all the better, of course, if this work has made a contribution to knowledge, or toward moving the human race a little farther forward.

I think if there was anything I learned from our skipper was that it’s not how you look; it’s how you perform.

People love conspiracy theories.

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

I believe that the message of Apollo XI was that in the spirit of Apollo, a free and open spirit, you can attack a very difficult goal and achieve it, if you can all agree and work together to achieve that goal.

Houston, Tranquillity Base here. The Eagle has landed.

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

A picture does a great job, but it’s not nearly like being there.