  Any generally accessible, absolutely true or false thought, Perry argued, will violate Accept. For suppose that there were a purely qualitative descriptive condition F Hume associated with his use of ‘I’ that gives its sense; say, the condition expressed by the expression ‘the philosopher who argued against the rationality of induction’. It would seem that, insofar as Hume forgot (or never knew) that he himself is uniquely F but retained his ability to think of himself with the expression ‘I’, it is possible for him to competently, reflectively, and sincerely accept the sentence ‘I wrote the Treatise’ while not accepting ‘The F wrote the Treatise’. No such purely qualitative, generally accessible proposition, Perry concluded, is equivalent in cognitive significance to Hume's thought that he himself wrote the Treatise. But Fregeanism entails that there is such a thought. So Fregeanism is false.