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.
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.
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.
