Scientific power is like inherited wealth; attained without discipline. You read about what others have done, and you take the next step. You can do it very young. You can make progress very fast.

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.

How soon hath Time, the subtle thief of youth, Stol'n on his wing my three-and-twentieth year!

We have a duty to care for the environment.

The only people in the world who can change things are those who can sell ideas.

We account the Scriptures of God to be the most sublime philosophy.

I am deeply committed to the cause of Indigenous Australians, and not just because of the Apology, but the big challenges which lie ahead in closing the gap.

Western culture is what is at risk from immigration from the Middle East.

I believe in being fully present. That means you should be with the person you’re with.

Our Christian witness is authentic when it is faithful and unconditional.

We have passed a lot of water since then.

I was 17 and the whole thing was very confusing at the time. It was a great job and I loved it, and to lose the role was definitely tough for me. I was devastated when I lost the role.