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

Some people criticize me for using sources that are a bit low brow (this quote is from 'Gladiator') but you know what? 'I'm just going to use that hostility to make me stronger, not weaker' as Kelly Rowland said on the X Factor.

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

Remember crime against property is not real crime. People look at an oil painting and admire the use of brushstrokes to convey meaning. People look at a graffiti painting and admire the use of a drainpipe to gain access.

You're advised not to drink the replica Arab spring water.

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.

There's obviously nothing wrong with selling your art - only an idiot with a trust fund would tell you otherwise. But it's confusing to know how far you should take it.