My old friend, classmate, apartment mate, and colleague, the distinguished Harvard philosopher Charles Parsons, has sent me a number of lengthy, detailed, and often fascinating comments on and corrections to my autobiography. Some of his corrections I have already inserted into the text, but many of them I have not yet attended to, laggard that I am. I just wanted to acknowledge publicly all the effort he has put into these comments and corrigenda. In my autobiography, I joked that I and the other graduate students in philosophy back in the middle fifties were so in awe of Charles' seemingly encyclopedic command of facts [something of a secondary talent with him, since his principal claim to our admiration was his intelligence] that we finally adopted the pragmatic epistemic principle that if Charles did not know it, then it was not known. I have on occasion flattered myself that I have a good memory, but in this as in much else, Charles puts me to shame.
Thank you, Charles.