The truth is, the way you write music, it's a code. It has to be very precise. It's scientific, but ultimately it also depends on interpretation. It's very similar to how you grow a master plan: it's an objective document, but at the same time it is a lyrical document which allows through interpretation to become a harmonious work of art.

It's about how to bring together the seemingly contradictory aspects of the memorial, which is about a tragedy and how it changed the world, but also about creating a vital and beautiful city of the 21st century.

I think to be creative you have to resist taking the easy path.

The official name of the project is 'Jewish Museum' but I have named it 'Between the Lines' because for me it is about two lines of thinking, organization and relationship. One is a straight line, but broken into many fragments, the other is a tortuous line, but continuing indefinitely.

And you have to remember that I came to America as an immigrant. You know, on a ship, through the Statue of Liberty. And I saw that skyline, not just as a representation of steel and concrete and glass, but as really the substance of the American Dream.

And of course I like Berlin a lot. It's such an interesting city

The Spiral Gallery may happen, too. It is not dependent on government funding.