As I see it, all of them - Tachists, Action Painters, Informel artists, and the rest - are only part of an Informel movement that covers a lot of other things as well. I think there's an Informel element in Beuys, as well; but it all began with Duchamp and chance, or with Mondrian, or with the Impressionists. The Informel is the opposite of the constructional quality of classicism - the age of kings, or clearly formed hierarchies.

Turning to the colour-classification methodology: The starting point are the four pure colours red, yellow, green and blue; their in-between shades and scales of brightness result in colour schemes containing 16, 64, 256 and 1,024 shades. More colours would be pointless because it wouldn't be possible to distinguish between them clearly.

My pictures are devoid of objects; like objects, they are themselves objects. This means that they are devoid of content, significance or meaning, like objects or trees, animals, people or days, all of which are there without a reason, without a function and without a purpose. This is the quality that counts. Even so, there are good and bad pictures.

The grey paintings, for example, a painted grey surface, completely monochromatic - they come from a motivation, or result from a state, that was very negative. It has a lot to do with hopelessness, depression and such things. But it has to be turned on its head in the end, and has to come to a form where these paintings possess beauty. And in this case, it's not a carefree beauty, but rather a serious one.

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.

Now there are no priests or philosophers left, artists are the most important people in the world.

I believe I am looking for rightness. My work has so much to do with reality that I wanted to have a corresponding rightness. That excludes painting in imitation. In nature everything is always right: the structure is right, the proportions are good, the colours fit the forms. If you imitate that in painting, it becomes false.