I had a mild case of polio - not enough to put me in an iron lung, but enough to keep me bedridden for weeks. As I came out of it, my mom wanted to do something for me. She realized that, growing up in the city, I'd missed out on a lot of nature.

All of the films that I've made are about the country I live in and grew up in... And I think if you're going to put an artist's eye to it, you're going to put a critical eye to it. I've always been interested in the gray area that exists between the black and white, or the red and blue, and that's where complexity lies.

I was never a good student. I had to be dragged into kindergarten. It was hard to sit and listen to somebody talk. I wanted to be out, educated by experience and adventure, and I didn't know how to express that.

Never revisit the past, that's dangerous. You know, move on.

It shouldn't be so difficult to determine what a planet is. When you're watching a science fiction show like 'Star Trek' and they show up at some object in space and turn on the viewfinder, the audience and the people in the show know immediately whether it's a planet or a star or a comet or an asteroid.

The whole point of all of this - why we are here, why the world is here, and why we have the political system and leaders that we do - is to achieve change. This is the purpose of life.

Freedom. Freedom of religion. Freedom to speak their mind. Freedom to build a life. And yes, freedom to build a business. With their own hands. This is the essence of the American experience.

It took a long time, but I have learned that you just can't take anything you want out of life without putting something back in exchange.