A work can do many things at once, and it doesn't have to be just about the world, it could also be about photography, it could be about perception, it could be an exploration of the medium. It could be a document, it could be a visual poetry, and it could be a formal exploration all at the same time.

I meet young artists and it becomes clear that with some the main motivation is getting a show in Chelsea. It strikes me that this is very different to the way it was for me, which was that I wanted to understand photography and the world and myself.

I'm always interested in finding new aesthetic problems to deal with and challenge myself, even if the aesthetic problem is one of content.

As not a native, I have the advantage of not seeing scenes habitually. I can see things fresh.

I know that people think of my work from the '70s as American, but I've been going to other places for a long time.

With a painting, you're taking basic building blocks and making something that's more complex than what you started with. It is a synthetic process. A photograph does the opposite: It takes the world, and puts an order on it, simplifies it.

To see something spectacular and recognise it as a photographic possibility is not making a very big leap. But to see something ordinary, something you’d see every day, and recognize it as a photographic possibility - that is what I am interested in.