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

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.

Brandalism Any advertisement in public space that gives you no choice whether you see it or not is yours. It belongs to you. It's yours to take, rearrange and re-use. Asking for permission is like asking to keep a rock someone just threw at your head.

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.

I don't know why people are so keen to put the details of their private life in public; they forget that invisibility is a superpower.

I give away thousands of paintings for free.

If Michaelangelo or Leonardo Da Vinci were alive today they’d be making Avatar, not painting a chapel.