Almost every work of art is an analogy. When I make a representation of something, this too is an analogy to what exists; I make an effort to get a grip on the thing by depicting it. I prefer to steer clear of anything aesthetic, so as not to set obstacles in my own way and not to have the problem of people saying: 'Ah, yes, that's how he sees the world, that's his interpretation.'

Photography has almost no reality; it is almost a hundred per cent picture. And painting always has reality: you can touch the paint; it has presence; but it always yields a picture - no matter whether good or bad. That's all the theory. It's no good. I once took some small photographs and then smeared them with paint. That partly resolved the problem, and it's really good - better than anything I could ever say on the subject.

Painting is traditional but for me that doesn't mean the academy. I felt a need to paint; I love painting. It was something natural - as is listening to music or playing an instrument for some people. For this reason I searched for themes of my era and my generation. Photography offered this, so I chose it as a medium for painting.

The urge to break with a tradition is only appropriate when you're dealing with an outdated, troublesome tradition: I never really thought about that because I take the old-fashioned approach of equating tradition with value (which may be a failing). But whatever the case, positive tradition can also provoke opposition if it's too powerful, too overwhelming, too demanding. That would basically be about the human side of wanting to hold your own.

Talk about painting: there's no point. By conveying a thing through the medium of language, you change it. You construct qualities that can be said, and you leave out the ones that can't be said but are always the most important.

Yes, we were amazed when that happened. It was a real joke to us. Konrad Lueg and I did a Happening, and we used the phrase just for the Happening, to have a catchy name for it; and then it immediately got taken up and brought into use. There's no defence against that - and really it's no bad thing.

A student researching into my work has actually traced the newspapers and magazines where I found theses images and has found out that many of them illustrate a collection of gruesome stories, murders and suicides which contrast with the images used. There is a contrast between the message carried by the text and that suppressed by the illustration.