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.

I think there will be a 200-story skyscraper someday. However, it will require a developer who will not think in conventional terms and for whom economic restraints won't apply.

When I work, I work very hard. When I don't work, I have to do something where my endeavor can totally take me off what I do professionally, like sailing. It takes all your attention.

I think the younger generation, the people poised to dominate the workforce, are more socially conscious. They are more demanding in terms of environment and how that environment contributes to their life.

Transparency is not the same as looking straight through a building: it's not just a physical idea, it's also an intellectual one.

Working is actually a pleasure. It's just very time-consuming. It's a way of life. I find that I can work when I travel and work when I run. There is nothing like, on a rainy day, to work.