I had always loved expressionist painting, like every European. In fact I admired it all the more because these were precisely the paintings despised by my father's generation.

There's a market for art, and things are indeed going swimmingly, especially for German artists. But everything takes place in America and in London, where there are quite a few wealthy, engaged people. What motivates them to buy art is a different question, but they do.

Despite all the taxes people pay, there supposedly isn't any money in this country for art. Of course, this makes an artist ask himself: "Well, then, what are you doing with the 100 million I pay each year? What happened to that money?" And he doesn't get an answer.

Nowhere in my collection do I, say, have a Auguste Renoir painting. Because everybody knows that this is a good painter without me having to demonstrate it.

I remember that Michael Werner told me about a famous collector, and Michael set up an appointment for us to meet. This man looked around the room and at my pictures. Then he said, "Young man, why are you doing these horrible things? Look out the window. There are nice girls out there. It's springtime. Look at how beautiful the world can be. You'll ruin your health by smoking so much and doing such tortured things."

When I began as an artist, I already did not like expressionism, or abstract expressionism, because abstract painting had already been done. I did not want to belong to any one group or the other, and I'm not one or the other.

I have always been aware of different movements and directions in art. But, in general, I'm always bored by any kind of generalization when it comes to artists. I think that there are just single individuals, who are valuable, and they work outside of any group.