Most forgers are caught because they tell the wrong person about what they do.

You can't paint pictures of love. You can only imagine them. So I suppose I don't need a painting by another artist. I have enough of my own.

I once went to a demonstration in Aachen against fare increases on public transport. A police officer pulled out a bunch of my hair, and there were a lot of violent beatings. That's when I thought to myself: You'd better leave it alone.

I can paint anything. Leonardo? Of course. But why? You couldn't sell it.

For the cynic, art is defined through money. That, of course, is a very sad statement. But an artist is someone who does creative things.

Sometimes I smoked opium. And I also took LSD - for a while, quite a lot of LSD, in fact. But I never had any bad experiences. I stopped in 1985. I'd had enough, and I don't miss it, either.

I think that the most important requirement is to capture the essence of a piece of art. You look at it, essentially absorb it, and you have to be able to understand it visually without having to think about how it was done. I was already able to do that as a child.