I think there is a new awareness in this 21st century that design is as important to where and how we live as it is for museums, concert halls and civic buildings.

There will be a competition for the memorial. And then it can be developed with trees, with planting. It can become a very beautiful place protected from the streets, because it is below. And it can be something very moving and very private.

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

And, yes, I love the process of building.

Architecture is not just for the moment, it is not just for the next fashion magazine.

We live in a time of renaissance ... cities are coming back to life, after a long neglect.

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.