I believe that he knew more what he was doing. I might be absolutely wrong about this, but that was my impression.

What attracted me about my mirrors was the idea of having nothing manipulated in them. A piece of bought mirror. Just hung there, without any addition, to operate immediately and directly. Even at the risk of being boring. Mere demonstration. The mirrors, and even more the Panes of Glass, were also certainly directed against Duchamp, against his Large Glass.

The grey is certainly inspired by the photo-paintings, and, of course, it's related to the fact that I think grey is an important colour - the ideal colour for indifference, fence-sitting, keeping quiet, despair. In other words, for states of being and situations that affect one, and for which one would like to find a visual expression.

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.

Only about one per cent of my paintings show family members. Do they help me deal with problems? It's likely that these problems can only be depicted. But photographs, private ones and others, keep appearing that fascinate me so much that I want to paint them. And sometimes the real meaning these images have for me only becomes apparent later.

Nature/Structure. There is no more to say. In my pictures I reduce to that. But 'reduce' is the wrong word, because these are not simplifications. I can't verbalize what I am working on: to me, it is many-layered by definition; it is what is more important, what is more true.

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.

Architecture was, or is, a kind of hobby, an inclination I have to fiddling around and building things. Putting up shelves or cupboards, or making tools, or designing houses ... it always has a functional or social motivation. If social changes are in the air, I am gripped immediately by the desire to build, and I think that I accelerate or anticipate changes in my life by doing so, at least in draft. In the case of my house, that was anticipation: in other words, first build, then change one's life.

Theory has nothing to do with a work of art. Pictures which are interpretable, and which contain a meaning, are bad pictures. A picture presents itself as the Unmanageable, the Illogical, the Meaningless.