There is no question that climate change is happening; the only arguable point is what part humans are playing in it.

No one will protect what they don't care about, and no one will care about what they have never experienced.

The truth is: the natural world is changing. And we are totally dependent on that world. It provides our food, water and air. It is the most precious thing we have and we need to defend it.

Instead of controlling the environment for the benefit of the population, perhaps we should control the population to ensure the survival of our environment

What humans do over the next 50 years will determine the fate of all life on the planet.

Anyone who believes in indefinite growth on a physically finite planet is either mad or an economist

The World is full of wonders, but they become more Wonderful, not less Wonderful when Science looks at them.

The question is, are we happy to suppose that our grandchildren may never be able to see an elephant except in a picture book?

How could I look my grandchildren in the eye and say I knew what was happening to the world and did nothing.

Bringing nature into the classroom can kindle a fascination and passion for the diversity of life on earth and can motivate a sense of responsibility to safeguard it.

I just wish the world was twice as big and half of it was still unexplored.

Excellence results from the accumulation of proper choices compounded over time.

If man doesn't learn to treat the oceans and the rain forest with respect, man will become extinct.

When it's a minor or supporting role, you learn to make the most of what you're given. I can make two lines seem like Hamlet.

I'm definitely on the incline to a peak.

What I term Zen, old Zen, the original face of Zen, new Zen, pure Zen, or Tantric Zen is - Zen in its essence.

Giving no pain to any creature, let him slowly accumulate spiritual merit, for the sake ,of acquiring a companion to the next world, just as the white ant ,gradually raises its hill.

Here's where I ask why don't you spend your time doing something safer and more boring. Like maybe administering suppositories to rabid gorillas.

The only film I ever made for money was something called Music From Another Room, which I really didn't like.

Trial by jury is the palladium of our liberties. I do not know what a palladium is, but I am sure it is a good thing!

These people are like sheep, if you were to ask them, who would like hepatitis, they are all going to cheer.