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.

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.

Cities are the greatest creations of humanity.

Be innovative. Don't listen to the tried and tested wisdom. Take a risk!

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.

And, yes, I love the process of building.

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