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'm not Candide, nor Dr Pangloss, but we know that faith moves mountains.

What is a habit? It’s just a shackle for ourselves.

When you're a kid with artistic yearnings brought up in the Bronx, you don't get fed up too easily.

Larry wanted us to reposition the tower. We wouldn't, and won't. He's been holding back our fees. We want to get paid. And that's it. It'll get solved and we'll carry on with planning Ground Zero.

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

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.