The Shuttle is to space flight what Lindbergh was to commercial aviation.

The limits of the possible can only be defined by going beyond them into the impossible.

I don't believe in astrology; I'm a Sagittarius and we're skeptical.

The only way to define your limits is by going beyond them.

The greatest tragedy in mankind's entire history may be the hijacking of morality by religion.

The moon is the first milestone on the road to the stars.

I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.

Any sufficiently advanced technology is indistinguishable from magic.

There is hopeful symbolism in the fact that flags do not wave in a vacuum.

Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.

Until we get rid of religion, we won't be able to conduct the search for God.

Discovering your identity is the key to fulfilling your destiny

I am gonna shock the crowd, you are just gonna wow them.

When the cat's away the mice will play.

I'm not much involved in sports, and I don't play, either.

You just work through it. You just hang in there.

If Congress doesn't raise taxes, you cannot get a private investment account without forgoing a portion, possibly all, of your guaranteed benefit check.

Liberty and choice are the essential components that constitute human dignity.

Medals are decided by hundredths of a second, so I need assurance that my vision is perfect every time I compete, no matter what the conditions.

Sometimes when we're waiting for God to speak, He's waiting for us to listen.

I see myself as an arbiter of taste.