To sum up the state of architecture in America: ninety percent of the buildings we live in and around aren't architecture. No, that's not right - 98 percent.

Faith? Haven't any. I'm not a nihilist or a relativist. I don't believe in anything but change. I'm a Heraclitean - you can't step in the same river twice.

I'm a chameleon, so changeable. I see myself as a gadfly and a questioner.

How does an artist know when the line that he just painted is good or not good? That's the catch. De Kooning was the greatest of my contemporaries in art, and he knew when he'd done a good line. When he didn't, he threw it away. I wish I'd thrown away some of mine.

There's no such thing as old age. I'm no different now than I was 50 years ago. I'm just having more fun.

Architecture is basically the design of interiors, the art of organizing interior space.

It is wonderful to be in the country in a glass house, because no matter what happens out there, you're nice and safe, you know, cuddled in your little bed, and there it is, raging storms, snowing - wonderful.