I don't think whole populations are villainous, but Americans are just extraordinarily unaware of all kinds of things. If you live in the middle of that vast continent, with apparently everything your heart could wish for just because you were born there, then why worry? [...] If people lose knowledge, sympathy and understanding of the natural world, they're going to mistreat it and will not ask their politicians to care for it.

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

We can now manipulate images to such an extrodinary extent that there's no lie you cannot tell.

Getting to places like Bangkok or Singapore was a hell of a sweat. But when you got there it was the back of beyond. It was just a series of small tin sheds.

The reverse side of the coin in having this extraordinary ability to go anywhere, is that no one anywhere is remote any more.

The idea that the Lord had given us a present, that the world is a gift from God... well, the amount of stuff, back then, that the Lord was giving away was limited. We do not have dominion.

I'm not a propagandist, I'm not a polemicist; my primary interest is just looking at and trying to understand how animals work.