"The art world is the biggest joke of all. It's a bunch of rich people buying art from each other."

"I think it's important to challenge authority. That's what art is all about."

"The streets are my canvas, and the city is my gallery."

"The art establishment is a joke. It's full of rich people who don't know anything about art."

"Graffiti is one of the few tools you have if you have almost nothing. And even if you don't come up with a picture to cure world poverty, you can make someone smile while they're having a piss."