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

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.

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.

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.

There is nothing in a crowded street more noticeable than a man running ― unless it is a woman.

There is never a right time. Except the time we make right.

Life and Death is all about Swansong

I wish we could go to the mo

Fixing obesity is going to require a change in our modern relationship with food. I'm hopeful that we begin to see a turnaround in this childhood obesity epidemic.

I think comedy is one of the hardest things to do.

Providence is like a curious piece of tapestry made of a thousand shreds, which, single, appear useless, but put together, they represent a beautiful history to the eye.

The precision provided (or enforced) by programming languages and their execution can identify lacunas, ambiguities, and other areas of potential confusion in conventional [mathematical] notation.

If I could make a record in two minutes and thirty seconds, I'd do it. I want the creativity, and I don't give a f - k about the snare sound.

History is the in-rushing toward what the Buddhists call the realm of the densely packed, a transformational realm where the opposites are unified.