I have a theory that you can make any sentence seem profound by writing the name of a dead philosopher at the end of it.

I don't know if street art ever really works indoors. If you domesticate an animal, it goes from being wild and free to sterile, fat and sleepy. So maybe the art should stay outside.

When you go to an art gallery you are simply a tourist looking at the trophy cabinet of a few millionaires.

Some people become cops because they want to make the world a better place. Some people become vandals because they want to make the world a better looking place.

It's impossible to predict which paintings will last and which won't. In New Orleans I painted on a dilapidated shop in a street littered with abandoned cars and rotting mattresses, then two hours later the piece was gone. It turned out I'd picked the side of a crack house and the proprietor didn't like the attention.

If Michaelangelo or Leonardo Da Vinci were alive today they’d be making Avatar, not painting a chapel.

People say graffiti is ugly, irresponsible and childish... but that's only if it's done properly.