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

I think the hardest part about my job is the best part of my job - the travel.

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

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

Our health as a society, our robustness as a community, as a nation, as a people, is not only dependent upon fiscal stability, military might, political strength - it's also dependent on a healthy planet.

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

I'm really worried about what the world is going to be like when my daughters are young women, [when] they are young leaders or mothers or businesspeople - whatever they're going to be. I'm afraid they're going to have a less healthy and less biologically rich planet.