Above all, it's never blind chance: it's a chance that is always planned, but also always surprising. And I need it in order to carry on, in order to eradicate my mistakes, to destroy what I've worked out wrong, to introduce something different and disruptive. I'm often astonished to find how much better chance is than I am.

The photograph is the only picture that can truly convey information, even if it is technically faulty and the object can barely be identified. A painting of a murder is of no interest whatever; but a photograph of a murder fascinates everyone.

Form is all we have to help us cope with fundamentally chaotic facts and assaults. Formulating something is a great start. I trust form, trust my feeling or capacity to find the right form for something. Even if that is only by being well organized. That too is form.

Experience has proved that there is no difference between a so-called realist painting - of a landscape, for example - and an abstract painting. They both have more or less the same effect on the observer.

Since there is no such thing as absolute rightness and truth, we always pursue the artificial, leading, human truth. We judge and make a truth that excludes other truths. Art plays a formative part in this manufacture of truth.

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.

I never worked at painting as if it were a job; it was always out of interest or for fun, a desire to try something.