We prefer synthetic rather than natural materials. Natural products are almost too valuable. Wood is much harder to produce than metal. And metal is recyclable, while wood isn't.
Transparency is not the same as looking straight through a building: it's not just a physical idea, it's also an intellectual one.
We want our buildings to work like a machine that will create a pleasurable environment.
We are creating a unique experience. It's starts with how you see the building from a distance.
When I came to America in the '60s, it was the place to be. I wonder if I'd come here today.
When I think of some of my earlier work, it really seems a fortunate coincidence that I succeeded.
You'd never think of taking a cab if you had to walk a mile down Chicago's Michigan Avenue. But in a bad city you take a cab just to go around the corner.
The architecture profession has lost a lot of its integrity, especially in the USA. The general architect here has no scruples, no ambitions.
Most architects say: I want to use this type of glass, even if it's too reflective or doesn't let enough light in. However, the use of a certain type of glass might change the comfort level.
Sometimes I have to accept a job I don't really want. Hardly anybody comes up to you with a commission; it's all competitions these days.
The American attitude towards efficiency and execution should always underlie architecture.
You don't know what the Chinese expect in the way of beauty. The presentation is just a farce. You come into a room filled with 50 people and they don't talk to you. There's very little interaction.
German and English firms operate internationally, while French firms do not. The only place where they all have work is in China. Anybody can sell himself in China!
Every building is a prototype. No two are alike.
A building is hard to judge. It takes many years to find out whether it works. It's not as simple as asking the people in the office whether they like it.