The photograph is the only picture that can truly convey information, even if it is technically faulty and the object can barely be identified. A painting of a murder is of no interest whatever; but a photograph of a murder fascinates everyone.

Art should be serious, not a joke. I dont like to laugh about art.

My method is related to an attempt to do something that might be understood by today's world, or that could at least provide understanding. In other words, doing something I understand and that everyone understands. This natural desire for communication is also found in other domains, like reading and discourse, etc. I also hate repeating myself; it gives me no pleasure whatsoever. Once I've understood something, I need to start off on new ground.

I began in 1976, with small abstract paintings that allowed me to do what I had never let myself do: put something down at random. And then, of course, I realized that it never can be random. It was all a way of opening a door for me. If I don't know what's coming - that is, if I have no hard-and-fast image, as I have with a photographic original - then arbitrary choice and chance play an important part.

It's that same quality I've been talking about. It's neither contrived, nor surprising and smart, not baffling, not witty, not interesting, not cynical, it can't be planned and it probably can't even be described. It's just good.

The year is always correct, also the month, only the day can be another. But that occurs to me only in the moment of writing it down.

In 1981, I think, for the Kunsthalle in Düsseldorf. Before that I designed a mirror room for Kasper König's Westkunst show, but it was never built. All that exists is the design - four mirrors for one room.