They didn't understand what they were doing. I'm afraid that will be on the tombstone of the human race.

Welcome...to Jurassic Park!

Whenever you hear the consensus of scientists agrees on something or other, reach for your wallet, because you're being had.

The extreme positions of the Crossfire Syndrome require extreme simplification - framing the debate in terms which ignore the real issues.

Let's be clear. The planet is not in jeopardy. We are in jeopardy. We haven't got the power to destroy the planet - or to save it. But we might have the power to save ourselves.

Books aren't written - they're rewritten. Including your own. It is one of the hardest things to accept, especially after the seventh rewrite hasn't quite done it.

You think you can destroy the planet? What intoxicating vanity. . . . . We've been residents here for the blink of an eye. If we're gone tomorrow, the earth will not miss us.

Life is wonderful. It's a gift to be alive, to see the sun and breathe the air. And there isn't really anything else.

It's better to die laughing than to live each moment in fear.

Do you know what we call opinion in the absence of evidence? We call it prejudice.

Social control is best managed through fear.

Weak people pretend they're perfect. Courageous people acknowledge and confront their weaknesses.

The circumstances of others seem good to us while ours seem good to others.

[Tolerance] is the greatest gift of the mind it requires the same effort of the brain that it takes to balance oneself on a bicycle.

The eventual place the American army should take on the western front was to a large extent influenced by the vital question of communication and supply.

There is nothing that can, in the dark become true

I think I've always had a decent perspective on wins and losses on the tennis court.

Confidence is the greatest friend.

I think that American people really know how to pursue fun, they really know how to have a good time. Japanese are somewhat more reserved than Americans, so I'm jealous.

The moon of Mahomet Arose, and it shall set; While, blazoned as on heaven's immortal noon, The cross leads generations on.

The theory that religion is a force for peace, often heard among the religious right and its allies today, does not fit the facts of history.