The process of making natural history films is to try to prevent the animal knowing you are there, so you get glimpses of a non-human world, and that is a transporting thing.

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.

At age 64 I started working at a preschool. I figured the kids would have a lot to teach me.

[Jesus] asked [His followers] to count the cost carefully, lest they should turn back when they met with suffering and privation. He told His followers that the world would hate them.

If you can talk brilliantly about a problem it can create the consoling illusion that it has been mastered.

We don't think of ourselves as do-gooders or altruists. It's just that somehow we're trying our best to be run with some sense of moral compass even in a business environment that is growing.

I'm not really a songwriter - I'm an interpreter. So in a sense I am an actress first and foremost. I act out the songs, and I lead with my heart.

The human mind is inspired enough when it comes to inventing horrors; it is when it tries to invent a Heaven that it shows itself cloddish.

I had always been the hardest on myself when I drew and painted. I am not hard on myself when I write. I like what I write, so it is a much happier process.

I am steady with my wife. I'm faithful to my wife.

What strikes me most about Best Buddies International is the simplicity and magnitude of the mission. Friendship is a simple idea.

I hope the World War II generation doesn't lose that quality that made them so appealing: their modesty, and the way they are always looking forward and seldom back.