Street culture is punk, hip-hop, skateboarding, surfing, graffiti. It's like a massive global culture that is all tied together. But for so many years it was very geographic.

To be in Brazil and see the work of Os Gêmeos or to be in England and see what Banksy is doing is pretty fascinating to me.

In the 1970s when I started in the art world, no self-respecting artist would have stood in line to try to get on a television show. It never would have happened.

There is a constant ebb and flow in art historical reputations. The reputation of even the greatest figures like Picasso are in flux.

Many of the museum directors who make an impact personally curate exhibitions.

Part of my agenda has been to support art that engages life with people.

I started getting really curious about art. I read about the Dadaists and the Futurists and the Constructivists - those kind of movements which were reflecting the angst of the people of their times. Their work was trying to lead a movement. I began thinking about what was happening, with painting on the streets and painting on the trains as being similar but also coming from a real, pure space. It wasn't being created by academies. It was a spontaneous combustion of ideas that just happened.