I'm never really sure what that word means, but however inaccurately I use it, 'classical' was always my ideal, as long as I can remember, and something of that has always stayed with me, to this day. Of course, there were difficulties, because in comparison to my ideal, I didn't even come close.

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.

I wanted to say something different: the pictures are also a leave-taking, in several respects. Factually: these specific persons are dead; as a general statement, death is leave-taking. And then ideologically: a leave-taking from a specific doctrine of salvation and, beyond that, from the illusion that unacceptable circumstances of life can be changed by this conventional expedient of violent struggle.

The Atlas belongs to the Lenbachhaus in Munich - it's long since ceased to belong to me. Occasionally I run across it somewhere, and I think it's interesting because it looks different each time.

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.

The first colour charts were unsystematic. They were based directly on commercial colour samples. They were still related to Pop Art. In the canvases that followed, the colours were chosen arbitrarily and drawn by chance. Then, 180 tones were mixed according to a given system and drawn by chance to make four variations of 180 tones. But after that the number 180 seemed too arbitrary to me, so I developed a system based on a number of rigorously defined tones and proportions.

I don't believe in the reality of painting, so I use different styles like clothes: it's a way to disguise myself.