Photographs have a relevance for things that cannot be said.

Artists are valuable to public discussion: They show the correlation between doing and thinking.

There are 1.3 billion people today who have no access to electricity. Many of them rely on kerosene lanterns for light, but kerosene is both expensive and hazardous to the health.

I myself have already spent a third of my life in Germany, first in Cologne and then, since 1994, in Berlin.

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.

It would be wrong to say that the city of Berlin is not regulated. What I think is more interesting is to what extent a city creates a sort of safe haven for its users, so that people feel confident that the city works on their behalf.