“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.”

Gaza is often described as ‘the world’s largest open air prison’ because no-one is allowed to enter or leave. But that seems a bit unfair to prisons – they don’t have their electricity and drinking water cut off randomly almost every day.

A lot of mothers will do anything for their children, except let them be themselves.

T.V. has made going to the theatre seem pointless, photography has pretty much killed painting but graffiti has remained gloriously unspoilt by progress.

Although you might have to creep about at night and lie to your mum it’s actually one of the more honest art forms available. There is no elitism or hype, it exhibits on the best walls a town has to offer and nobody is put off by the price of admission.

My lawyer’s opinion is that the cops might not actually be able to charge me with criminal damage any more – because theoretically my graffiti actually increases the value of property rather than decreasing it. That’s his theory, but then my lawyer also believes wearing novelty cartoon ties is a good look.

The art world is the biggest joke going. It’s a rest home for the overprivileged, the pretentious, and the weak. And modern art is a disgrace – never have so many people used so much stuff and taken so long to say so little.

I need someone to protect me from all the measures they take in order to protect me.

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

I tell myself I use art to promote dissent, but maybe I am just using dissent to promote my art. I plead not guilty to selling out. But I plead it from a bigger house than I used to live in.

Sometimes I feel so sick at the state of the world I can’t even finish my second apple pie.

Some people represent authority without ever possessing any of their own.

Writing graffiti is about the most honest way you can be an artist. It takes no money to do it, you don’t need an education to understand it, and there’s no admission fee.

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

In the future, everybody will be anonymous for 15 minutes.

We can’t do anything to change the world until capitalism crumbles. In the meantime we should all go shopping to console ourselves.

I’d been painting rats for three years before someone said ‘that’s clever it’s an anagram of art’ and I had to pretend I’d known that all along.