Get the shuttle out of the garage. It's in its prime of its life. How could we just put it away?

Curiosity is the essence of human existence.

We leave as we came, and, God willing, as we shall return, with peace and hope for all mankind.

I'm quite disappointed that I'm still the last man on the moon.

If you begin to think you're something you're not, you're looking in the wrong mirror.

Prepare for the unknown, unexpected and inconceivable . . . after 50 years of flying I'm still learning every time I fly.

I've been asked about UFOs and I've said publicly I thought they were somebody else, some other civilization.

We went into darkness after being in daylight the whole time on the way to the Moon. And then we went into darkness. And we're in the shadow... of the Moon.

Yes, I am the last man to have walked on the moon, and that's a very dubious and disappointing honor. It's been far too long.

The mass gross absence of sound in space is more than just silence.

Nobody can take those footsteps I made on the surface of the moon away from me.

My goal is to write every day. I say it is my ideal. I am careful not to pass judgment or create anxiety if I do not do it. No one lives up to his ideal.

Things that aren't important, that have nothing to do with winning and losing, don't have to be a rule.

My ideas will not be discussed, they will be executed.

MEDIOCRITY IS A CHOICE... PROCRASTINATION IS A VIRUS THE FIRST ERROR IS INDECISION

It's you people dying from nothing that are screwed. I got all sorts of neat gadgets waiting for me...oxygen tent, iron lung.

I like having the digital camera on my smart phone, but I also like having a dedicated camera for when I want to take real pictures.

We all seek comfort, and I don't pretend to want to live in squalor.

Had a lot of moments that didn't last forever, now you're in the corner tryin' to put it together - how to love.

God is that indefinable something which we all feel but which we do not know.

Everytime you fall down or take the wrong path, it isn't wasted. You will surely develop and grow over time.