"My dad served in the Air Force as ground crew for several years, and doesn't really talk about it. I know that it's there. I think my main thing about direct or indirect experiences as near to home as it were is the idea of self-sacrifice really."

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I've led a life of such structured discipline and always had a goal in mind of knowing what I was doing, from West Point to the Air Force combat, MIT, looking for new things to study and get involved in. And then I got into the space program, and how disciplined can you get?

— Buzz Aldrin