My favourite subjects at school were algebra and logic: making a big problem into something small.

As photographers, we have to find our own identity, our own voice, our own vocabulary. And my question all the time is whether this vocabulary is limited, like our own vocabulary that goes from A to Zed, or whether this vocabulary can carry on growing. And to me, I hope that it carries on growing.

My favourite words are possibilities, opportunities and curiosity.

Most photographers go and photograph something that they see, that exists, and that somebody else has created - they document it. But fashion photographers have to create what they're going to photograph. We have to go into the thought and build it up, get a girl, get a guy, get a situation, get the house, get the decor. It's the meaning of the word photography: "writing with light."

There is something about Prince William and Prince Harry that brings real modernity to the British royal family. They are also very open, human, and kind, and this is what I have tried to capture in the pictures I have taken of them as well as in my pictures of Prince William and Catherine.

A man today has to live with the reality of today. He can no longer live with the reality of 100 years ago. The world's changing so fast. Unless you are prepared to adapt every day, then you have a problem, because the world's not stopping.

The liberation of women has brought a lot of equality to the man, in the emancipation of the man as a bulldog; we can also be soft. It's interesting, because sometimes I maybe push the men a little bit more than the women, because it's a little bit less expected.