Philip Glass on new work versus old work

How do you see the work that you did versus the work that you do?

GLASS: I don’t mean to give you a Zen koan, but the work I did is the work I know, and the work I do is the work I don’t know. That’s why I can’t tell you, I don’t know what I’m doing. And it’s the not knowing that makes it interesting.

[in New York Times Magazine, 10/07/12]