But there's no way round it-commercial success is a mark of failure for a graffiti artist. We're not supposed to be embraced in that way. When you look at how society rewards so many of the wrong people, it's hard not to view financial reimbursement as a badge of self-serving mediocrity.

I like to think I have the guts to stand up anonymously in a western democracy and call for things no-one else believes in - like peace and justice and freedom.

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

I figure there are enough self-opinionated assholes trying to get their ugly little faces in front of you as it is. You ask a lot of kids today what they want to be when they grow up, and they say, 'I want to be famous.' You ask them, 'For what reason?' and they don't know or care. I think Andy Warhol got it wrong - in the future, so many people are going to become famous that one day everybody will end up being anonymous for 15 minutes.

The difference between freedom and slavery is one thin line

If you have a statue in the city centre you could go past it every day on your way to school and never even notice it, right. But as soon as someone puts a traffic cone on its head, you've made your own sculpture.

Is graffiti art or vandalism? That word has a lot of negative connotations and it alienates people, so no, I don't like to use the word 'art' at all.