  Notice that according to Davidson’s description of this view, the quotation marks per se have no semantic function; rather, they indicate that the words are being used in a special way. They are being used ‘autonymously’, that is, to name themselves.  So understood, the Picture Theory has at least this much in common with a Use/Identity Theory: they agree that quotation marks are inessential; they only indicate a special use. They indicate that expressions are being used as a picture (or as a hieroglyph). The Picture Theory—if it’s even appropriate to call it a theory—is never elaborated in any great detail and we suspect that if it were, it would become obvious that it is a version of the Use/Identity Theory.