What drives me is that moment of discovery. I love the unknown.

I think a human animal is far more wild and unpredictable and dangerous and destructive than any other animal.

Today, I’m a conservationist because I believe that my species doesn’t have the right or option to determine the fate of other species, even ones that inspire fear in us.

We know that when push comes to shove, [we can] drive ourselves to save our planet.

I love people who have died trying to save wildlife. When I see that passion, that gives me hope.

I'm glad I'm inspiring somebody.

We live in a time where we have more extinction happening on our planet than since the dinosaurs were wiped out 50 million years ago.

I'm a biologist. At my core, I'm a naturalist.

Running is my addiction. It's always present. I'm constantly thinking about my next run.

I am really sobered by what's happening to ecosystems around our planet and to the wildlife that is to be found there.

In my heart, ever since I [was] a little kid, I've been an explorer.

A man with wisdom will always have a solution no matter how big his challenges may be. Wisdom makes you a problem solver.

Dreams come true with much work.

Be careful, ' I hissed, then released him. 'Keep one eye on your back, and two on your best friend.''That's three eyes.''You'll need four to survive what's coming, ' I said.

Late hours, nocturnal cigars, and midnight drinkings, pleasurable though they may be, consume too quickly the free-flowing lamps of youth, and are fatal at once to the husbanded candle-ends of age.

If E.F. Harriman paid me what he's paying those guys to stop me from robbing him, I'd stop robbing him.

By its very nature, the novel indicates that we are becoming. There is no final solution. There is no last word.

A life is measured by how it is lived for the sake of heaven.

iPod liberalism [is] where we assume that every single Iranian or Chinese who happens to have and love his iPod will also love liberal democracy.

To her own heart it was a delightful affair, to her imagination it was even a ridiculous one, but to her reason, her judgment, it was completely a puzzle.

Death was in every sell of his body. He gave off a faint, greenish steam of decay. Lee imagined he would glow in the dark.