I think one of the important evolutions is that we no longer feel compulsively the need to argue, or to justify things on a kind of rational level. We are much more willing to admit that certain things are completely instinctive and others are really intellectual.

But now sustainability is such a political category that it's getting more and more difficult to think about it in a serious way. Sustainability has become an ornament.

The beauty of my profession [architecture] lies in its randomness and surprise. And don't think I can choose my projects. I have to build what's offered to me.

Most old cities are now sclerotic machines that dispense known qualities in ever-greater quantities, instead of laboratories of the uncertain. Only the skyscraper offers business the wide-open spaces of a man-made Wild West, a frontier in the sky.

Each building has to be beautiful, but cheap and fast, but it lasts forever. That is already an incredible battery of seemingly contradictory demands. So yes, I'm definitely perhaps contradictory person, but I operate in very contradictory times.

The acceptance of certain realities doesn't preclude idealism. It can lead to certain breakthroughs.

Influence is a very unpleasant subject and I deal with it in a maybe irresponsible way, which is to really ignore it. It would be a nightmare if we started to really think about it; it would tie our hands, it would tie everyone elses hands.