“Contact with like-minded painters, a group means a great deal to me: nothing comes in isolation. We have worked out our ideas largely by talking them through... One depends on one's surroundings. And so the exchange with other artists – and especially the collaboration with Lueg and Polke – matters a lot to me.”

“Lueg and Palermo saw what was good, what was bad, in what I was painting. That became the basis of our relationship, that we shared an idea, a sensibility. With Sigmar Polke, it was different. Our relationship was based on being outrageous. I have difficulties with his work. He [Polke] refuses all values and criteria, and for that reason I could never talk to him seriously. He refuses to accept any borders, any limits.”

“It seems that Locke had in mind rival goods when he developed his theory (if one consumes it, others can’t). What happens to non-rival goods like ideas? George Bernard Shaw famously said that if you and I have an apple and we exchange apples, you would only have one apple but if you and I have an idea and we exchanged them, we will have two ideas. So, how is it possible to treat ideas as if they were apples i. e. to make them into commodities? It is only through copyright that it is possible to produce scarcity out of ideas and this of course can produce serious benefits for some but not all”

“My whole area of art activity has always been addressed to working with other people... You see, I personally like the sensual contact of collaborating. Ideas are not real estate. In collaboration one can accept the fact that someone else can be so sympathetic and in tune with what you’re doing, that through this they move into depths that might not be obvious if that person had been working alone in a studio with the door shut.”

“Think. You have had your dealings with our bureaucracy. It is impossible not to, especially if one is a foreigner. Believe me, when we set our minds to it we can tangle, obstruct, and bring to a dead halt a herd of stampeding elephants.”

“You have all these fragments, like pieces of a puzzle, and you can place them together into large groups, but the groups don't go together no matter how you try, and then suddenly you get one fragment and it fits two different groups and then suddenly the two great groups are one. The relation of the mythos to insanity. That's a key fragment. I doubt whether anyone ever said that before. Insanity is the terra incognita surrounding the mythos. And he knew! He knew the Quality he talked about lay outside the mythos.”

“We exchanged a meaning glance. Or, rather, two meaning glances, I giving him one and he giving me the other.”

“Architects and painters know precisely what they are about as long as they deal with material phenomena. … But when they come to the aesthetics of their work, when they aim at a particular effect on the mind or on the senses, the rules dissolve into nothing but vague ideas.”

“Nothing's a joke with me. It just all comes out like one.”

“It occurs to me that our survival may depend upon our talking to one another.”