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.

Higher ceilings allow the use indirect lighting, which is much healthier and reduces glare.

When I came to America in the '60s, it was the place to be. I wonder if I'd come here today.

I find if my body feels well and I exercise regularly, I think better, work better and feel better.

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.

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!

Chinese buildings are like American buildings, with big footprints. People don't care about daylight or fresh air.