We seldom stop to think that we are still creatures of the sea, able to leave it only because, from birth to death, we wear the water-filled space suits of our skins.

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.

I've always wondered how much can you do for your fellow man if your hands are constantly stuck together in Prayers for them?

You've all been so sure that life is good that I've never been able to disbelieve it. Never will be able to.

I am a pioneer now, looking onto a promised land.

What old people say you cannot do, you try and find that you can. Old deeds for old people, and new deeds for new.

Light sufferings give us leisure to complain.

I went to Amherst because my brother had gone there before me, and he went there because his guidance counselor thought that we would do better there than at a large university like Harvard.

I am a bit biased. I co-chair the campaign effort of George W. Bush.

I love trying to play the not-confident guy, the guy against my normal character, because that's when real acting comes into play.

I am confident of doing well because I am enjoying my sport again.

Never esteem men on account of their riches or their station. Respect goodness, find it where you may.