It takes less land to grow a pound of broccoli than it does a pound of beef. Less land to grow a pound of grain than a pound of beef. Less water, less energy.

To be a modern person in 2012, you are often required to have some electronics in your life. And I do. I try to put that phone down, put the computer away, and get out there and hike in the woods; feel it in my feet, feel it in my hands; get out in the garden and feel the soil under my fingers, my fingertips and my fingernails. I try to be involved in nature in a very tactile way. I think that's important.

This is a deeply spiritual issue...Do we want to spend more time trying to care for our fellow man or do we want to just pursue more virtual reality? That's the issue before us.. and it's being played out in the world of the environment.

You cannot be quiet about things that you know.

The two most abundant forms of power on earth are solar and wind, and they're getting cheaper and cheaper.

We, who have so much, must do more to help those in need. And most of all, we must live simply, so that others may simply live.

When you're in the public eye - whether it be entertainment, sports, medicine, politics, whatever way - you have an opportunity, and I think also an obligation and a responsibility, to disseminate good information.