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.

If pro-abortionists want to commit intellectual suicide and deny scientific facts, that's their problem. But there's no reason a civilized society should fund their anti-scientific outlook - or accept its inhumane consequences.

The issue of the environment as seen by Pope Francis is not a matter of purely scientific or, indeed, theological debate: it involves economic and political views on how the world's poor can be brought out of poverty while protecting the environment.

One of my motivations to become a blood specialist was to study malaria in red blood cells. But in science, you discover something and you want to go this way, but your work goes that way.

I love science, and I believe in it. I have a faith that science can solve problems and make the world a better place.