Perhaps the two greatest moments of my life were standing on the moon and being outside of the room when my granddaughter was born! We tend not to remember the worst.

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.

Time alone can nourish or erode our emotions.

Welcome to your new bodies, gentlemen. If you'd like, I can help you start your own 'dysmorphia is all in your head' support group.

Recognising clichés is a sign of aging.

BAREFOOT BEACHTake off your shoes-You're on barefoot beach.Relax in the sunshine-Broken only by trees.

Innovation and disruption are the hallmarks of the technology world, and hardly a moment passes when we are not thinking, doing, or talking about these topics.

You are already broke and don't even know it.

His answer to every problem, every setback was “I will work harder!” —which he had adopted as his personal motto.

The man who is intoxicated with life does not pass judgment, does not seek to come to a conclusion, does not impose his message on the world.

Bless my soul,” whispered the old bartender, “Harry Potter . . . what an honor.

It's not a model if it's full-scale, Tomkinson, it's an icebreaker.