Architecture is not about building the impossible, which we can do if we have enough money and enough tools and enough computers. It is about building what is appropriate and about attaining beauty through such an approach. I describe this premise as 'inherent buildability', and I believe it is central to what I do.

Performing arts buildings are complex. The acoustics, the sight lines and all that have to just be perfect. So you begin with just making these things sublime as musical instruments. And if you fail there, you have failed it all.

I think you need to, as an architect, understand the essence of a place and create a building that feels like it resonates with the culture of a place. So my buildings in India or in Kansas City or in Arkansas or in Singapore, they come out different because the places are so different.

Architecture should be rooted in the past, and yet be part of our own time and forward looking.

This is the contradictory desire in our utopia. We want to live in a small community with which we can identify and yet we want all the facilities of the city of millions of people. We want to have very intense urban experiences and yet we want the open space right next to us.

I'm completely taken and impressed by the planning authority of Singapore and its Urban Redevelopment Authority (URA). It's the most cutting-edge agency in the world. They have very effective guidelines for development, and they review design as it evolves.

We are producing urban places which are disjointed and disconnected and not worthy of our civilisation