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

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

Society’s future will depend on a continuous improvement program for the human character. And what will that future bring? I do not know, but it will be exciting.

Opportunities will be available to you that you cannot imagine.

The regret on our side is, they used to say years ago, we are reading about you in science class. Now they say, we are reading about you in history class.

All in all, for someone who was immersed in, fascinated by, and dedicated to flight, I was disappointed by the wrinkle in history that had brought me along one generation late. I had missed all the great times and adventures in flight.