I still go back to saying the most important thing that you've ever written, for me personally, was CFAI section 2.2, where you argued against anthropomorphism in AI. That was the thing that cracked my mind loose and set it on its journey without feeling trapped by traditional views of rationality, intelligence, or wisdom. Not that this appeared on OB as far as I can remember, but I think it's important enough that it should appear somewhere in the book.