The notion of ever more old people needing ever more young people, who will in turn grow old and need even more young people, and so on ad infinitum, is an obvious ecological Ponzi scheme.

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.

My experiences have taught me that things rarely improve with a simple change of scenery.

Maybe the hardest thing in writing is simply to tell the truth about things as we see them.

Sovereign is he who decides on the exception.

It was a great joy for me to develop a strong female character in the spirit of an Icelandic woman. Icelandic women tend to be very strong and very independent, and I think that came in very handy.

I don’t crop my images and I always shoot handheld. By doing that I build in a kind of imperfection and this helps to emphasize reality.

The objective of the liberals is to destroy this country.

Ye great teachers: listen to what you say!

When I think of those who have influenced my life the most, I think not of the great but of the good.

In the land of genius, the sun always shines; in the land of clever, there are many clouds!

Composing mortals with immortal fire.