The Father of the Family, written in 1758, and first acted in 1761, is very superior to The Natural Son; it even enjoyed a certain popularity. In Germany it became an established favourite, and in Italy it was only less popular than a piece of Goldoni's. The French were not quite so easy to please. In 1761 its reception was undoubtedly favourable, and it ran for more than a week. In 1769 it was reproduced, and, according to Diderot's own account, with enthusiasm. "There was a frightful crowd," he says, "and people hardly remember such a success. I was surprised at it myself. My friends are at the height of exultation. My daughter came home intoxicated with wonder and delight." Even Madame Diderot at length grew ashamed at having to confess that she had not seen her husband's triumph, and throwing aside her horror of the stage, was as deeply moved as every one else.[262]

Notwithstanding this satisfactory degree of success, and though it was performed as late as 1835, the play never struck root in France. It is indeed a play without any real quality or distinction. "Diderot, in his plays," said Madame de Staël, "put the affectation of nature in the place of the affectation of convention."[263] The effect is still more disagreeable in the first kind of affectation than the second. The Father of the Family is made more endurable than The Natural Son by a certain rapidity and fire in the action, and a certain vigour in the characters of the impetuous son (Saint Albin) and the malignant brother-in-law (the Commander). But the dialogue is poor, and the Father of the Family himself is as woolly and mawkish a figure as is usually made out of benevolent intentions and weak purpose combined. The woes of the heavy father of the stage, where there is no true pathos, but only a sentimental version of it, find us very callous. The language has none of that exquisite grace and flexibility which makes a good French comedy of own day, a piece by Augier, Sandeau, Feuillet, Sardou, so delightful. Diderot was right in urging that there is no reason why a play should be in verse; but then the prose of a play ought to have a point, elegance, and highly-wrought perfection, which shall fill us with a sense of art, though not the art of the poet. Diderot not only did not write comedy in such a style; but he does not even so much as show consciousness that any difference exists between one kind of prose and another. The blurred phrases and clipped sentences of what Diderot would have called Nature, that is to say of real life, are intolerable on the stage. Even he felt this, for his characters, though their dialogue is without wit or finish, are still dull and tame of speech, in a different way from that in which the people whom we may meet are dull and tame. There is an art of a kind, though of an extremely vapid kind.

Again, though he may be right in contending that there is a serious kind of comedy as distinct from that gay comedy which is neighbour to farce—of this we shall see more presently—yet he is certainly wrong in believing that we can willingly endure five acts of serious comedy without a single relieving passage of humour. Contrast of character, where all the characters are realistic and common, is not enough. We crave contrast in the dramatic point of view. We seek occasional change of key. That serious comedy should move a sympathetic tear is reasonable enough; but it is hard to find that it grudges us a single smile. The result of Diderot's method is that the spectator or the reader speedily feels that what he has before him substitutes for dramatic fulness and variety the flat monotony of a homily or a tract. It would be hard to show that there is no true comedy without laughter—Terence's Hecyra, for instance—but Diderot certainly overlooked what Lessing and most other critics saw so clearly, that laughter rightly stirred is one of the most powerful agencies in directing the moral sympathies of the audience,—the very end that Diderot most anxiously sought.

It is mere waste of time to bestow serious criticism on Diderot's two plays, or on the various sketches, outlines, and fragments of scenes with which he amused his very slight dramatic faculty. If we wish to study the masterpieces of French comedy in the eighteenth century, we shall promptly shut up the volumes of Diderot, and turn to the ease and soft gracefulness of Marivaux's Game of Love and Chance, to the forcible and concentrated sententiousness of Piron's Métromanie, to the salt and racy flavour of Le Sage's Turcaret. Gresset, again, and Destouches wrote at least two comedies that were really fit for the stage, and may be read with pleasure to-day. Neither of these compliments can fairly be paid to The Natural Son and The Father of the Family. Diderot's plays ought to be looked upon merely as sketchy illustrations of a favourite theory; as the rough drawings on the black board with which a professor of the fine arts may accompany a lecture on oil painting.

One radical part of Diderot's dramatic doctrine is wholly condemned by modern criticism; and it is the part which his plays were especially designed to enforce. "It is always," he says, "virtue and virtuous people that a man ought to have in view when he writes. Oh, what good would men gain, if all the arts of imitation proposed one common object, and were one day to unite with the laws in making us love virtue and hate vice. It is for the philosopher to address himself to the poet, the painter, the musician, and to cry to them with all his might: 0 men of genius, to what end has heaven endowed you with gifts? If they listen to him, speedily will the images of debauch cease to cover the walls of our palaces; our vices will cease to be the organs of crime; and taste and manners will gain. Can we believe that the action of two old blind people, man and wife, as they sought one another in their aged days, and with tears of tenderness clasped one another's hands and exchanged caresses on the brink of the grave, so to say—that this would not demand the same talent, and would not interest me far more than the spectacle of the violent pleasures with which their senses in all the first freshness of youth were once made drunk?"[264]

The emphasising moralists of Diderot's school never understood that virtue may be made attractive, without pulling the reader or the spectator by the sleeve, and urgently shouting in his ear how attractive virtue is. When The Heart of Midlothian appeared (1818), a lady wrote about it as follows: "Of late days, especially since it has been the fashion to write moral and even religious novels, one might almost say of the wise good heroines what a lively girl once said of her well-meaning aunt—'On my word she is enough to make anybody wicked.' Had this very story been conducted by a common hand, Effie would have attracted all our concern and sympathy, Jeanie only cold approbation. Whereas Jeanie, without youth, beauty, genius, warm passions, or any other novel perfection, is here our object from beginning to end. This is 'enlisting the affections in the cause of virtue' ten times more than ever Richardson did; for whose male and female pedants, all excelling as they are, I never could care half as much as I found myself inclined to do for Jeanie before I finished the first volume."[265]

In other words, you must win us by kindling our sympathy, not by formally commanding our moral approval. To kindle sympathy your personage must be interesting; must touch our pity or wonder or energetic fellow-feeling or sense of moral loveliness, which is a very different thing from touching our mere sense of the distinctions between right and wrong. Direct homily excites no sympathy with the homilist. Deep pensive meditations on the moral puzzles of the world are not at all like didactic discourse. But the Father of the Family was exactly fulfilling Diderot's notion of dramatic purpose and utility when he talked to his daughter in such a strain as this: "Marriage, my daughter, is a vocation imposed by nature.... He who counts on bliss without alloy knows neither the life of man nor the designs of heaven. If marriage exposes us to cruel pain, it is also the source of the sweetest pleasures. Where are the examples of pure and heartfelt interest, of real tenderness, of inmost confidence, of daily help of griefs divided, of tears mingled, if they be not in marriage? What is there in the world that the good man prefers to his wife? What is there in the world that a father loves more dearly than his children? O sacred bond, if I think of thee, my whole soul is warmed and elevated!"[266]

But these virtuous ejaculations do not warm and elevate us. In such a case words count for nothing. It is actual presentation of beautiful character, and not talk about it, that touches the spectator. It is the association of interesting action with character, that moves us and inspires such better moods as may be within our compass. Diderot, like many other people before and since, sought to make the stage the great moral teacher. That it may become so, is possible. It will not be by imitating the methods of that colossal type of histrionic failure, the church-pulpit. Exhortation in set speeches always has been, and always will be, the feeblest bulwark against the boiling floods of passion that helpless virtue ever invented, and it matters not at all whether the hortatory speeches are placed on the lips of Mr. Talkative, the son of Saywell, or of some tearful dummy labelled the Father of the Family.[267]

Yet one is half ashamed to use hard words about Diderot. He was so modest about his work, so simple and unpretending, so wholly without restless and fretting ambitions, and so generous in his judgment of others. He made his own dramatic experiment, he thought little enough of it; and he was wholly above the hateful vice of sourly disparaging competitors, whether dead or living. He knew that he was himself no master, but he was manly enough to admire anybody who was nearer to mastery. He was full of unaffected delight at Sedaine's busy and pleasing little comedy, The Philosopher without knowing it; it was so simple without being stiff, so eloquent without the shadow of effort or rhetoric. After seeing it, Diderot ran off to the author to embrace him, with many tears of joyful sympathy and gratitude. Sedaine, like Lillo, the author of Diderot's favourite play of George Barnwell, was a plain tradesman, and the success of his libretti for comic operas had not spoiled him. He could find no more expansive words for his excited admirer than "Ah, Monsieur Diderot, que vous étes beau!"[268] Diderot was just as sensible of the originality and Aristophanic gaiety of Collé's brilliant play, Truth in Wine, though Collé detested the philosophic school from Voltaire downwards, and left behind him a bitterly contemptuous account of The Natural Son.[269]

Of all comic writers, however, the author of the Andria and the Heautontimorumenos was Diderot's favourite. The half dozen pages upon Terence, which he threw off while the printer's boy waited in the passage (1762), are one of the most easy, flowing, and delightful of his fragments; there is such appreciation of Terence's suavity and tact, of his just and fine judgment, of his discrimination and character. He admits that Terence had no verve; for that he commends the young poet to Molière or Aristophanes, but as verve was exactly the quality most wanting to Diderot himself, he easily forgave its absence in Terence, and thought it amply replaced by his moderation, his truth, and his fine taste. Colman is praised for translating Terence, for here, says Diderot, is the lesson of which Colman's countrymen stand most in need. The English comic writers have more verve than taste. "Vanbrugh, Wycherley, Congreve, and some others have painted vices and foibles with vigour; it is not either invention or warmth or gaiety or force that is wanting to their pencil, but rather that unity in the drawing, that precision in the stroke, that truth in colouring, which distinguish portrait from caricature. Especially are they wanting in the art of discerning and seizing those naïf, simple, and yet singular movements of character, which always please and astonish, and render the imitation at once true and piquant."[270] Criticism has really nothing to add to these few lines, and if Diderot in his last years read The School for Scandal, or The Rivals, he would have found no reason to alter his judgment.