"All architecture is, for me, a matter of participation of the human being – contrary to what a lot of people have had to say. I regard it as memorable space. It must be acoustically and visually rewarding. You should be aware that you have arrived at a room where theater is going to take place. You ought to feel you're absolutely at the same level as the performance. I don't think it can be just any old room; it needs to be a breathing, dynamic thing."
The Changing Practice: Theaters." Progressive Architecture 46 (October 1965): 160-220.