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

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.

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

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.

The three boys stood in the darkness, striving unsuccessfully to convey the majesty of adult life

Social justice cannot be attained by violence. Violence kills what it intends to create.

If you break your neck, if you have nothing to eat, if your house is on fire, then you got a problem. Everything else is inconvenience.

Spiritual relationship is far more precious than physical. Physical relationship divorced from spiritual is body without soul.

Where the law ends tyranny begins.

It takes time to become myself every morning.

Yes, we see that there are problems in the world. But we believe in a universal force that, when activated by the human heart, has the power to make all things right.

To be a hegemon is inherently ambiguous, usually implying some mixture of dominance and legitimacy, that is, being seen as contributing global leadership in a generally benevolent manner.

If you actually want to change your world, there is a better way of doing it than blowing yourself up.

I don't think an NC-17 rating is the kiss of death. Nor do I think that, in the hands of the right filmmakers, studios have a preconceived notion to pass on NC-17 material.