My first reaction to finding Robert Smithson's Spiral Jetty in a book was, Wow, what a great photograph! I could not believe that someone had gone to so much trouble just to end up with a picture.

I think art is the development of this interface between mind and matter, between mind and phenomenon, between what's inside of us and what's happening outside of us. It developed over the course of the last 35,000 years. We made a lot of improvements because it not only gave us the tools to understand the world better, but it also gave us better and better tools to do it. It's that continuous relationship: technology and discernment.

The great challenge is how to make smart, intelligent art that can speak to everybody.

I don't want to fool people. If I wanted to do that, I would be working with virtual reality. I want to operate on the other level, the other end of the illusion spectrum. I want to create the worst possible illusions so it doesn't really fool people, but instead give people a measure of their own belief. It makes them aware of how much they need to be fooled in order to understand the world around them.

I hate to say I'm a photographer, because I learned photography as I went along. But I also hate to say I'm a painter, a draftsman, even an artist. I think it's good when you're confused about what you are; it means you haven't defined yourself as an artist yet.

In the back of every painting there's an entire universe that makes it possible for the painting to be there: an army of conservators, technicians, people who maintain these things, the market.

When you organize your work and look back at your entire production, it may feel like you're looking at a straight line, but in fact it's nothing like that. The work is very experimental and most of the time it develops like branches. I usually see a capillary, like a tree shape where there are... branches that sort of move because you're not tending to them.