Unlike the expressionists, I have never been interested in renewing the world through the vehicle of art.

I do not have a philosophy about retrospectives. Of course, I cannot change what I have done. What I am doing today, this I can change, in view of whatever I have done before. My retrospectives are like a series of ghosts.

The artist is not responsible to any one. His social role is asocial... his only responsibility consists in an attitude to the work he does.

No one who looks at my paintings can see whether a painting is upside down or not anymore. I've made or developed so many image models that some people have given up trying to keep track of me. But others have only one or two ways of doing things and are successful with that.

I started collecting my artist friends, artists like myself who nobody had yet noticed. In everything, all I am collecting, so to speak, are my friends - artist friends.

I love my old paintings as postulates as fresh starting points but I have to destroy them. I have to make a new manifesto.

In the beginning, the energy involved to create came from my reaction to the work of other artists. The force behind this was aggression. The art that I saw was great, but I had to reject it, because I could not continue in the same direction. So I had to do something entirely different. It had to be so different, so extreme, that those who loved pop art, for instance, hated me. And this was my strength.