Imagine a city where graffiti wasn't illegal, a city where everybody could draw whatever they liked. Where every street was awash with a million colours and little phrases. Where standing at a bus stop was never boring. A city that felt like a party where everyone was invited, not just the estate agents and barons of big business. Imagine a city like that and stop leaning against the wall - it's wet.

Nothing is black and white, and there is no purity and there is no such thing has justice.

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

Graffiti is only dangerous in the mind of three types of people; politicians, advertising executives and graffiti writers.

Not everyone will understand your journey. That's okay. You're here to live your life, not to make everyone understand.

All graffiti is low-level dissent, but stencils have an extra history. They've been used to start revolutions and to stop wars

Film is incredibly democratic and accessible, it's probably the best option if you actually want to change the world, not just re-decorate it.