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

If it doesn’t matter, get rid of it. If you can’t get rid of it, it matters.

A lot of people never use their initiative because no-one told them to.

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 thing I hate the most about advertising is that it attracts all the bright, creative and ambitious young people, leaving us mainly with the slow and self-obsessed to become our artists.. Modern art is a disaster area. Never in the field of human history has so much been used by so many to say so little.

Bus stops are far more interesting and useful places to have art than in museums.

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

Nobody knows what you feel inside unless you tell them.

If you want to say something and have people listen then you have to wear a mask. If you want to be honest then you have to live a lie.

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 didn’t choose anonymity.Instead, I chose absence.

The anonymity of the city is one of its strengths as well as – carried too far – one of its weaknesses.

I can never be anonymous – especially when I walk round looking like this; especially when I take so much trouble not to be anonymous, right?

By being happy we sow anonymous benefits upon the world.

The challenge for me as an actor is if you become a celebrity, you don’t meet strangers anymore. And strangers are where we have our anonymity. And I believe it’s essential for the soul to be anonymous, especially if you’re going to be an actor.

Anonymity beats fame. One cannot undo fame.

I think everybody really responds to the secret society aspect. This idea that you have to remain anonymous, and yet at the same time, you’re kind of saving the world.

In a room where people unanimously maintain a conspiracy of silence, one word of truth sounds like a pistol shot.