My goal is to formulate a new color theory based on the full spectrum of visible light.

Having an experience is taking part in the world. Taking part in the world is really about sharing responsibility.

Photographs have a relevance for things that cannot be said.

Your rainbow panorama enters into a dialogue with the existing architecture and reinforces what is assured beforehand, that is to say the view of the city. I have created a space which virtually erases the boundaries between inside and outside – where people become a little uncertain as to whether they have stepped into a work or into a part of the museum. This uncertainty is important to me, as it encourages people to think and sense beyond the limits within which they are accustomed to moving.

In the past Berlin was much more radical and extreme and now it's becoming much more of a conventional European city.

I do not think making art alone makes it any better than making it with a team of people.

I don't know a single collector or museum director who says: 'Oh, he's on a list, so I think I'll buy something of his.' The people who buy my art put a little more thought into it than that.