On the iPhone I tended to draw with my thumb. Whereas the moment I got to the iPad, I found myself using every finger.

And then I went round the corner and there's a Van Gogh portrait, and you just think, well, this is another level. A higher level, actually. I love the Sargent, but it's not the level of Van Gogh.

I worked in the NHS as a hospital orderly during my national service, and people thought it was a noble service. But over the years it's lost its humanity.

I'm rather shocked by what I thought was simple mindedness actually. I thought they're not looking, they're not actually looking.

Television is becoming a collage - there are so many channels that you move through them making a collage yourself. In that sense, everyone sees something a bit different.

In fact, most artists want to make things a bit more difficult for themselves as they go along, to challenge themselves.

It is very good advice to believe only what an artist does, rather than what he says about his work.