I don't believe a person has a style. What people have is a way of photographing what is inside them. What is there comes out.

As in any person's life, there have been difficult moments: I have a son with Down's syndrome; through my photography, I have witnessed all manner of human degradation. But there have also been very happy moments.

I discovered photography completely by chance. My wife is an architect; when we were young and living in Paris, she bought a camera to take pictures of buildings. For the first time, I looked through a lens - and photography immediately started to invade my life.

There comes a moment when it is no longer you who takes the photograph, but receives the way to do it quite naturally and fully.

I believe that the average person can help a lot, not by giving material goods but by participating, by being part of the discussion, by being truly concerned about what is going on in the world.

I work alone. Humans are incredible, because when you come alone, they will receive you, they accept you, they protect you, they give you all things that you need, and they teach you all things you must know. When you come with two persons or three persons, you have a group in front of them. They don't discuss with the new persons what is important to them.

So many times I've photographed stories that show the degradation of the planet. I had one idea to go and photograph the factories that were polluting, and to see all the deposits of garbage. But, in the end, I thought the only way to give us an incentive, to bring hope, is to show the pictures of the pristine planet - to see the innocence.