Pilots take no special joy in walking: pilots like flying.

Mystery creates wonder and wonder is the basis of man's desire to understand.

We have no proof, But if we extrapolate, based on the best information we have available to us, we have to come to the conclusion that ... other life probably exists out there and perhaps in many places.

Man must understand his universe in order to understand his destiny.

I can honestly say - and it's a big surprise to me - that I have never had a dream about being on the moon.

As I stepped on the moon, I looked around, dazed...magnifice nt. The vast, sandy silver surface was almost illusory.

It's different, but it's very pretty out here. I suppose they are going to make a big deal of all this.