Hearing that the subject of Diderot's dialogue is the Parasite, the scholar will naturally think of that savage satire in which Juvenal rehearses the thousand humiliations that Virro inflicts on Trebius: how the wretched follower has to drink fiery stuff from broken crockery, while the patron quaffs of the costliest from splendid cups of amber and precious stones; how the host has fine oil of Venafrum, while the guest munches cabbage that has been steeped in rancid lamp-oil; one plays daintily with mullet and lamprey, while the other has his stomach turned by an eel as long as a snake, and bloated in the foul torrent of the sewers; Virro has apples that might have come from the gardens of the Hesperides, while Trebius gnaws such musty things as are tossed to a performing monkey on the town wall. But the distance is immeasurable between Juvenal's scorching truculence and Diderot's half-ironical, half-serious sufferance. Juvenal knows that Trebius is a base and abject being; he tells him what he is; and in the process blasts him. Diderot knows that Rameau too is base and abject, but he is so little willing to rest in the fat and easy paradise of conventions, that he seems to be all the time vaguely wondering in his own mind how far this genius of grossness and paradox and bestial sophism is a pattern of the many, with the mask thrown off. He seems to be inwardly musing whether it can after all be true, that if one draws aside a fold of the gracious outer robe of conformity, there is no comeliness of life shining underneath, but only this horror of the skeleton and the worm. He restrains exasperation at the brilliant effrontery of his man, precisely as an anatomist would suppress disgust at a pathological monstrosity, or an astonishing variation in which he hoped to surprise some vital secret. Rameau is not crudely analysed as a vile type: he is searched as exemplifying on a prodigious scale elements of character that lie furtively in the depths of characters that are not vile. It seems as if Diderot unconsciously anticipated that terrible, that woful, that desolating saying,—There is in every man and woman something which, if you knew it, would make you hate them. Rameau is not all parasite. He is your brother and mine, a product from the same rudimentary factors of mental composition, a figure cast equally with ourselves in one of the countless moulds of the huge social foundry.

Such is the scientific attitude of mind towards character: It is not philanthropic nor pitiful: the fact that base characters exist and are of intelligible origin is no reason why we should not do our best to shun and to extirpate them. This assumption of the scientific point of view, this change from mere praise and blame to scrutiny, this comprehension that mere execration is not the last word, is a mark of the modern spirit. Besides Juvenal, another writer of genius has shown us the parasite of an ancient society. Lucian, whose fertility, wit, invention, mockery, freshness of spirit, and honest hatred of false gods, make him the Voltaire of the second century, has painted with all his native liveliness more than one picture of the parasite. The great man's creature at Rome endures exactly the same long train of affronts and humiliations as the great man's creature at Paris sixteen centuries later, beginning with the anguish of the mortified stomach, as savoury morsels of venison or boar are given to more important guests, and ending with the anguish of the mortified spirit, as he sees himself supplanted by a rival of shapelier person, a more ingenious versifier, a cleverer mountebank. The dialogue in which Lucian ironically proves that Parasitic, or the honourable craft of Spunging, has as many of the marks of a genuine art as Rhetoric, Gymnastic, or Music, is a spirited parody of Socratic catechising and Platonic mannerisms. Simo shows to Tychiades, as ingeniously as Rameau shows to Diderot, that the Spunger has a far better life of it, and is a far more rational and consistent person than the orator and the philosopher.[297] Lucian's satire is vivid, brilliant, and diverting. Yet every one feels that Diderot's performance, while equally vivid, is marked by greater depth of spirit; comes from a soil that has been more freely broken up, and has been enriched by a more copious experience. The ancient turned upon these masterpieces of depravation the flash of intellectual scorn; the modern eyes them with a certain moral patience, and something of that curious kind of interest, looking half like sympathy, which a hunter has for the object of his chase.

The Rameau of the dialogue was a real personage, and there is a dispute whether Diderot has not calumniated him. Evidence enough remains that he was at least a person of singular character and irregular disastrous life. Diderot's general veracity of temperament would make us believe that his picture is authentic, but the interest of the dialogue is exactly the same in either case. Juvenal's fifth satire would be worth neither more nor less, however much were found out about Trebius.

"Rameau is one of the most eccentric figures in the country, where God has not made them lacking. He is a mixture of elevation and lowness, of good sense and madness; the notions of good and bad must be mixed up together in strange confusion in his head, for he shows the good qualities that nature has bestowed on him without any ostentation, and the bad ones without the smallest shame. For the rest, he is endowed with a vigorous frame, a particular warmth of imagination, and an uncommon strength of lungs. If you ever meet him, unless you happen to be arrested by his originality, you will either stuff your fingers into your ears or else take to your heels. Heavens, what a monstrous pipe! Nothing is so little like him as himself. One time he is lean and wan, like a patient in the last stage of consumption: you could count his teeth through his cheeks; you would say he must have passed some days without tasting a morsel, or that he is fresh from La Trappe. A month after, he is stout and sleek as if he had been sitting all the time at the board of a financier, or had been shut up in a Bernardine monastery. To-day in dirty linen, his clothes torn and patched, with barely a shoe to his foot, he steals along with a bent head; one is tempted to hail him and toss him a shilling. To-morrow, all powdered, curled, in a good coat, he marches about with head erect and open mien, and you would almost take him for a decent worthy creature. He lives from day to day, from hand to mouth, downcast or sad, just as things may go. His first care of a morning when he gets up is to know where he will dine; after dinner, he begins to think where he may pick up a supper. Night brings disquiets of its own. Either he climbs to a shabby garret he has, unless the landlady, weary of waiting for her rent, has taken the key away from him; or else he shrinks to some tavern on the outskirts of the town, where he waits for daybreak over a crust of bread and a mug of beer. When he has not threepence in his pocket, as sometimes happens, he has recourse either to a hackney-carriage belonging to a friend, or to a coachman of some man of quality, who gives him a bed on the straw beside the horses. In the morning he still has bits of the mattress in his hair. If the weather is mild, he measures the Champs Elysées all night long. With the day he reappears in the town, dressed over night for the morrow, and from the morrow sometimes dressed for the rest of the week."

Diderot is accosted by this curious being one afternoon on a bench in front of the Café de la Régence in the Palais Royal. They proceed in the thoroughly natural and easy manner of interlocutors in a Platonic dialogue. It is not too much to say that Rameau's Nephew is the most effective and masterly use of that form of discussion since Plato. Diderot's vein of realism is doubtless in strong contrast with Plato's poetic and idealising touch. Yet imaginative strokes are not wanting to soften the repulsive theme, and to bring the sordid and the foul within the sphere of art. For an example. "Time has passed," says Rameau, "and that is always so much gained."

"I.—So much lost, you mean.

"He.—No, no; gained. People grow rich every moment; a day less to live, or a crown piece to the good, 'tis all one. When the last moment comes, one is as rich as another. Samuel Bernard, who by pillaging and stealing and playing bankrupt, leaves seven-and-twenty million francs in gold, is no better than Rameau, who leaves not a penny, and will be indebted to charity for a shroud to wrap about him. The dead man hears not the tolling of the bell; 'tis in vain that a hundred priests bawl dirges for him, in vain that a long file of blazing torches go before. His soul walks not by the side of the master of the funeral ceremonies. To moulder under marble, or to moulder under clay, 'tis still to moulder. To have around one's bier children in red and children in blue, or to have not a creature, what matters it?"

These are the gleams of the mens divinior, that relieve the perplexing moral squalor of the portrait. Even here we have the painful innuendo that a thought which is solemnising and holy to the noble, serves equally well to point a trait of cynical defiance in the ignoble.

Again, there is an indirectly imaginative element in the sort of terror which the thoroughness of the presentation inspires. For indeed it is an emotion hardly short of terror that seizes us, as we listen to the stringent unflinching paradox of this heterogeneous figure. Rameau is the squalid and tattered Satan of the eighteenth century. He is a Mephistopheles out at elbows, a Lucifer in low water; yet always diabolic, with the bright flash of the pit in his eye. Disgust is transformed into horror and affright by the trenchant confidence of his spirit, the daring thoroughness and consistency of his dialectic, the lurid sarcasm, the vile penetration. He discusses a horrible action, or execrable crime, as a virtuoso examines a statue or a painting. He has that rarest fortitude of the vicious, not to shrink from calling his character and conduct by their names. He is one of Swift's Yahoos, with the courage of its opinions. He seems to give one reason for hating and dreading oneself. The effect is of mixed fear and fascination, as of a magician whose miraculous crystal is to show us what and how we shall be twenty years from now; or as when a surgeon tells the tale of some ghastly disorder, that may at the very moment be stealthily preparing for us a doom of anguish.

Hence our dialogue is assuredly no "meat for little people nor for fools." Some of it is revolting in its brutal indecency. Even Goethe's self-possession cannot make it endurable to him. But it is a study to be omitted by no one who judges the corruption of the old society in France an important historic subject. The picture is very like the corruption of the old society in Rome. We see the rotten material which the purifying flame of Jacobinism was soon to consume out of the land with fiery swiftness. We watch the very classes from which, as we have been so often told, the regeneration of France would have come, if only demagogues and rabble had not violently interposed. There is no gaiety in the style; none of that laughter which makes such a delineation of the manners of the time as we find in Collé's play of Truth in Wine, naïf, true to nature, and almost exhilarating. In Rameau we are afflicted by the odour of deadly taint.