"I'm a big fan of irony. I think it's a very powerful tool."

"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."

"The people who truly deface our neighborhoods are the companies that scrawl giant slogans across buildings and buses trying to make us feel inadequate unless we buy their stuff."

"All artists are willing to suffer for their art. But why are so few prepared to learn to draw?"

"The greatest crimes in the world are not committed by people breaking the rules but by people following the rules."