 Wittgenstein came to speak in Oxford in 1947, just before Prichard’s death. He had said he did not want to read a paper, but was willing to respond to a paper given by some agreeable student. O. P. Wood, who was still an undergraduate (at Corpus Christi) was set up as the fall guy, and read a paper on the Cogito. Wittgenstein, using the paper as a springboard for his own ideas, responded at length. Prichard made several interventions, on each occasion very deliberately mispronouncing Wittgenstein’s name as Whittgensteen. Finally he rose again and said, in his high reedy voice ‘Mr. Whittgensteen, Mr. Whittgensteen, you have not answered the question. Cogito ergo sum – I think therefore I am. Is it true, Mr Whittgensteen, is it true – I think therefore I am?’. Wittgenstein, exasperated, turned very icy and replied ‘I think this is a very foolish old man; so I am – what?’. (This story comes from Peter Hacker, who heard it from two people who were there, J. O. Urmson and H. L. A. Hart. Hart thought that Wittgenstein’s reply was brilliant repartee; Urmson thought it unforgivably rude.)