I still say, 'Shoot for the moon; you might get there.'

Upon stepping foot on the moon, Buzz remarked to Houston, 'Beautiful, beautiful. Magnificent desolation.'

Somebody would think I was trying to get favored treatment because my ancestors had the name Moon. And that's a joke.

My first biography written in '73 was not 'Journey To The Moon.' It was 'Return To Earth.' Because for me, that was the more difficult task - disappointment.

As we begin to have landings on the moon, we can alternate those with vertical launch of similar crew modules on similar launch vehicles for vertical-launch tourism in space, if you want to call it that... adventure travel.

Exploring Mars is a far different venture from Apollo expeditions to the moon; it necessitates leaving our home planet on lengthy missions with a constrained return capability.