When skateboarding and punk merged, it really became a large teen subculture.

After pop art, graffiti is probably the biggest art movement in recent history to have such an impact on culture.

Graffiti doesn't exist unless someone got a photo, because it's gone immediately.

One of the interesting things about skateboarding and graffiti is that skateboarding exists in the documentation of an act.

I believe that an art exhibition can be engaging, fun and deeply intellectually satisfying and serious. These are not contradictory concepts in art.

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.

Every day you run into artists on the streets in SoHo or other creative people you want to do something with. There's nothing to match that chance encounter.

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.

Dennis Hopper is one of the great American lives.

Art dealing is when you're doing it as a business.

You can achieve the goal with courage, confidence and commitment.

Contrary to popular belief: Knowing where you are from will not really tell you where you are going. It will merely tell you why you are where you are.

I just kind of change, constantly, what my focus is. So whatever is stimulating me or inspiring me at the time is what I focus on.

Art is kind of the lens through which I think about God.

It's so nice to be insane, no one asks you to explain.

Developed countries should support developing countries in tackling climate change. This not only is their responsibility, but also serves their long-term interests.

Simplicity and complexity need each other.

The 40s are when you start trading your psychological problems for physical ones.

It's very difficult once you've been on telly because people know what you do. They give you a little bit of grace but then they're harsher if you're not funny, so you have to be funny.

I am the laughter of the new-born child On whose soft-breathing sleep an angel smiled.