Of course I constantly despair at my own incapacity, at the impossibility of ever accomplishing anything, of painting a valid, true picture or even knowing what such a thing ought to look like. But then I always have the hope that, if I persevere, it might one day happen. And this hope is nurtured every time something appears, a scattered, partial, initial hint of something which reminds me of what I long for, or which conveys a hint of it – although often enough I have been fooled by a momentary glimpse that then vanishes, leaving behind only the usual thing.

As a matter of fact, it was only through the dealer Fred Jahn that I succeeded in overcoming my reservation about the works on paper and exhibiting them. Added to this, of course, was the fact that after ten years I could see the watercolours in a different light, and in conjunction with pictures painted afterwards, they had at least become more comprehensible to me.

I've never found anything to be lacking in a blurry canvas. Quite the contrary: you can see many more things in it than in a sharply focused image. A landscape painted with exactness forces you to see a determined number of clearly differentiated trees, while in a blurry canvas you can perceive as many trees as you want. The painting is more open.

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.

It is a danger to wait around for an idea to occur to you. You have to find the idea.

In 1981, I think, for the Kunsthalle in Düsseldorf. Before that I designed a mirror room for Kasper König's Westkunst show, but it was never built. All that exists is the design - four mirrors for one room.

The desire to please is maligned, unfairly. There are many sides to it. First of all, pictures have to arouse interest before people will even look at them, and then they have to show something that holds that interst - and naturally they have to be presentable, just as a song has to be sung well, otherwise people run away. One mustn't underrate this quality, and I have always been delighted when my pieces have also appealed to the museum guards, the laymen.