cannot be counted testimony of the highest kind. We have thus the extraordinary circumstance that for a great number of years, down almost to the present decade, the text of the one masterpiece of a famous man who died so recently as 1784 rested on a single manuscript, and that a manuscript of disputed authenticity.[295] Critics differ extremely in their answers to the question of the subject or object of Diderot's singular "farce-tragedy." One declares it to be merely a satirical picture of contemporary manners. Another insists that it is meant to be an ironical _reductio ad absurdum_ of the theory of self-interest, by exhibiting a concrete example of its working in all its grossness. A third holds that it was composed by way of rejoinder to Palissot's comedy _(Les Philosophes_), 1760, which had brought the chiefs of the rationalistic school upon the stage, and presented them as enemies of the human race. A fourth suspects that the personal and dramatic portions are no more than a setting for the discussion of the comparative merits of the French and Italian schools of music. The true answer is that the dialogue is all of these things, because it is none of them. It is neither more nor less than the living picture and account of an original, drawn by a man of genius who was accustomed to observe human nature and society with a free unblinking vision, and to meditate upon them deeply and searchingly. Diderot goes to work with Rameau in some sort and to a certain extent as Shakespeare went to work with Falstaff. He is the artist, reproducing with the variety and perfection of art a whimsical figure that struck his fancy and stirred the creative impulse. Ethics, aesthetics, manners, satire, are all indeed to be found in the dialogue, but they are only there as incident to the central figure of the sketch, the prodigy of parasites. Diderot had no special fondness for these originals. Yet he had a keen and just sense of their interest. "Their character stands out from the rest of the world, it breaks that tiresome uniformity which our bringing up, our social conventions, and our arbitrary fashions have introduced. If one of them makes his appearance in a company, he is like leaven, fermenting and restoring to each person present a portion of his natural individuality. He stirs people up, moves them, provokes to praise or blame: he is a means of bringing out reality; gives honest people a chance of showing what they are made of, and unmasks the rogues."[296]