If you're digging into Hofstadter (and if you aren't, you should be, whether or not you agree with him, almost every word he's ever written is worth reading, in

If you're digging into Hofstadter (and if you aren't, you should be, whether or not you agree with him, almost every word he's ever written is worth reading, including the seemingly irrelevant stuff about translations), I Am A Strange Loop (http://www.amazon.com/Am-Strange-Loop-Douglas-Hofstadter/dp/0465030785 http://www.amazon.com/Am-Strange-Loop-Douglas-Hofstadter/dp/...) is a good read, as well.