When you start talking about the known knowns and the unknown unknowns, you're thrown into a crazy meta-level discussion. Do I know what I know, do I know what I don't know, do I know what I don't know I don't know. It becomes a strange, Lewis Carroll - like nursery rhyme.

Philip Glass once told me, "They can always copy what you've done, but they can't copy what you're going to do."

I used to live in New York City, then when my son was two years old we moved to Cambridge Massachusetts and we've been there ever since. My son is now twenty-nine years old, so we've been up there for a while.

What is it that angers us?... We have been tricked. In essence, we have been lied to. The problem is not that the photograph has been manipulated, but that we have been manipulated by the photograph.

When you start talking about the known knowns and the unknown unknowns, you're thrown into a crazy meta-level discussion. Do I know what I know, do I know what I don't know, do I know what I don't know I don't know. It becomes a strange, Lewis Carroll - like nursery rhyme.

The proper route to an understanding of the world is an examination of our errors about it.

Those who cannot remember the past are condemned to repeat it without a sense of ironic futility.