I've been in movies with Meryl Streep, Jack Nicholson - but I was on 'The Simpsons,' and finally, in the eyes of my children, I was a star.

When we destroy something crated by man we call it vandalism but when we destroy something by nature we call it progress.

I ride my bike for transportation a great deal - occasionally I ride it for fun. But I also have a generator bike that's hooked up to my solar battery pack, so if I ride 15 minutes hard on my bike, that's enough energy to toast toast, or power my computer.

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.

You cannot be quiet about things that you know.

By 1990 I went back to no gasoline; I was just riding around on my bike, taking the bus. I had a tiny little electric car that didn't go very far or very fast. People thought I'd lost my mind. Even my own family thought I'd lost my mind.

There are many different ways now to experience nature. Get out there and hike.