My favorite documentary of all time, "In the Shadow of the Moon," is a great tribute to the astronauts of the Apollo missions. At the 7:18 mark of the YouTube video below, it gives a majestic presentation of Neil Armstrong stepping onto the Moon.
At the 9:20 mark "CapCom" commander Charlie Duke describes his admiration for Neil Armstrong and Armstrong's famous words, "One small step for man, one giant leap for mankind."
It was like Neil, but deeper than I thought that he would come up with. I wouldn't have had the self control to do that. To me, I'd have been jumping up and down. "Yahoo," you know. "Man, I'm here." That's the kind of response that I think I would have had. But he was very--very controlled. And those words came out, and they were very appropriate, and---perfect.