It's our destiny to explore. It's our destiny to be a space-faring nation.

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.

It is love, not reason, that is stronger than death.

Providence is wiser than you, and you may be confident it has suited all things better to your eternal good than you could do had you been left to your own option.

Collect books, even if you don’t plan on reading them right away. Filmmaker John Waters has said, “Nothing is more important than an unread library.

Naming celestial objects is usually done by astronomers and professionals. Other people who are interested in space never get the opportunity to do that kind of thing.

I'm really hopeless with technology - I don't even have a computer.

Universities are seminaries to produce Leftists

Imagine a giant asteroid on a direct collision course with Earth. That is the equivalent of what we face now with climate change, yet we dither.

The goal ever recedes from us. The greater the progress the greater the recognition of our unworthiness. Satisfaction lies in the effort, not in the attainment. Full effort is full victory.

Our intentions create our reality.

Go away, you give philosophy nothing to catch hold of.