I guess those of us who have been with NASA kind of understand the tremendous excitement and thrills and celebrations and national pride that went with the Apollo program is just something you're not going to create again, probably until we go to Mars.
Alan ShepardI realized up there that our planet is not infinite. It's fragile. That may not be obvious to a lot of folks, and it's tough that people are fighting each other here on Earth instead of trying to get together and live on this planet. We look pretty vulnerable in the darkness of space.
Alan Shepard