One of the joys of being a grandparent is getting to see the world again through the eyes of a child.

Unless we are willing to encourage our children to reconnect with and appreciate the natural world, we can't expect them to help protect and care for it.

If all humans disappeared today ,the earth would start improving tomorrow.If all the ants disappeared today ,the earth would start dying tomorrow.

Change is never easy, and it often creates discord, but when people come together for the good of humanity and the Earth, we can accomplish great things.

If one day I look out from my cabin's porch and see a row of windmills spinning in the distance, I won't curse them. I will praise them. It will mean we are finally getting somewhere.

If we pollute the air, water and soil that keep us alive and well, and destroy the biodiversity that allows natural systems to function, no amount of money will save us.

In nature there is no such thing as waste. In nature nothing is wasted; everything is recycled.

How you imagine the world determines how you live in it.

Education has failed in a very serious way to convey the most important lesson science can teach: skepticism.

If we want to move towards a low-polluting, sustainable society, we need to get consumers to think about their purchases.

Debating the best way to do something we shouldn't be doing in the first place is a sure way to end up in the wrong place.

Yeah, right. Instead of watching TV, we'll practice our weird magical powers. Great. What's next? Zooming around on flying carpets?

One, if you attack my integrity, I will defend myself. If you attack my patriotism, I will defend myself. If you come after my family, I will counter-attack viciously, I will destroy you.

Well, like any time you're shooting documentary stuff, you've got to be in the moment, and you've got to be able to be in control enough to capture what's happening

I hate the man who eats without knowing what he’s eating. I doubt his taste in more important things.

Maybe I was little bit more aggressive than the average kid.

... it's important that people who are politically active understand both sides.

I hope my own children never have to fight a war.

There are two parts to the creative endeavor: making something, then disseminating it.

I have a million nightingales on the branches of my heart singing freedom.

The love of liberty is the love of others; the love of power is the love of ourselves.