You have to know those things. You have to know structure, and you spend nine-tenths of your time on that. You say you know structure, but do you know connections? What happens when the water gets in that little place? Only years and years of experience… but that’s nothing to do with the art. You’ve got to know all of that before you start. Painters have it easy; they’ve got to know what kinds of pigments will last. They don’t know that even sometimes, but even that’s not necessary. You repair a picture if it’s bad, but in architecture, it falls down. That’s a sociological crux. Then you’ve got the permits and things to go through with city hall that drive you up your wall. Then you have the clients. The care and feeding of clients is really one of the main obstacles, because you always have a client with some preconceived idea of what a house looks like, and all you want him to do is leave a check and go to Europe for a couple of years. Or leave two checks. But alas, life isn’t simple. If it were, more people would be better architects.