You don't need planning permission to build castles in the sky

The human race is the most stupid and unfair kind of race. A lot of the runners don't even get decent sneakers or clean drinking water. Some runners are born with a massive head start, every possible help along the way and still the referees seem to be on their side. It's not surprising a lot of people have given up compeating altogether and gone to sit in the grandstand, eat junk and shout abuse. What the human race needs is a lot more streakers.

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.

A wall is a very big weapon. It's one of the nastiest things you can hit someone with.

The holy grail is to spend less time making the picture than it takes people to look at it.

We don’t need any more heroes; we just need someone to take out the recycling.

I wouldnt want to be remembered as the guy who contaminated a perfectly legitimate form of protest art with money and celebrities.