 But one reason it may be true that philosophy should be couched in vernacular terms has to do with philosophy’s special task. Just as the cartographer was required to use a different, more general vocabulary to plot the geography of the local village, so too should the philosopher use a more general vocabulary than the specialist’s to plot the “cross-bearings” between the concepts of different theories. The tangles and knots that a philosopher has to unpick are set not by some branch of specialist theory, but “in the thought and the discourse of everyone, specialists and non-specialists alike” (1953, 304).