Denis Diderot

DENIS DIDEROT (1713-1784), French man of letters and encyclopaedist, was born at Langres on the 5th of October 1713. He was educated by the Jesuits, like most of those who afterwards became the bitterest enemies of Catholicism; and, when his education was at an end, he vexed his brave and worthy father's heart by turning away from respectable callings, like law or medicine, and throwing himself into the vagabond life of a bookseller's hack in Paris. An imprudent marriage (1743) did not better his position. His wife, Anne Toinette Champion, was a devout Catholic, but her piety did not restrain a narrow and fretful temper, and Diderot's domestic life was irregular and unhappy. He sought consolation for chagrins at home in attachments abroad, first with a Madame Puisieux, a fifth-rate female scribbler, and then with Sophie Voland, to whom he was constant for the rest of her life. His letters to her are among the most graphic of all the pictures that we have of the daily life of the philosophic circle in Paris. An interesting contrast may be made between the Bohemianism of the famous English literary set who supped at the Turk's Head with the Tory Johnson and the Conservative Burke for their oracles, and the Bohemianism of the French set who about the same time dined once a week at the baron D'Holbach's, to listen to the wild sallies and the inspiring declamations of Diderot. For Diderot was not a great writer; he stands out as a fertile, suggestive and daring thinker, and a prodigious and most eloquent talker.

Diderot's earliest writings were of as little importance as Goldsmith's Enquiry into the State of Polite Learning or Burke's Abridgement of English History. He earned loo crowns by translating Stanyan's History of Greece (1743); with two colleagues he produced a translation of James's Dictionary of Medicine (1746-1748) and about the same date he published a free rendering of Shaftesbury's Inquiry Concerning Virtue and Merit (1745), with some original notes of his own. With strange and characteristic versatility, he turned from ethical speculation to the composition of a volume of stories, the Bijoux indiscrete (1748), gross without liveliness, and impure without wit. In later years he repented of this shameless work, just as Boccaccio is said in the day of his grey hairs to have thought of the sprightliness of the Decameron with strong remorse. From tales Diderot went back to the more congenial region of philosophy. Between the morning of Good Friday and the evening of Easter Monday he wrote the philosophiques (1746), and he presently added to this a short complementary essay on the sufficiency of natural religion. The gist of these performances is to press the ordinary rationalistic objections to a supernatural revelation; but though Diderot did not at this time pass out into the wilderness beyond natural religion, yet there are signs that he accepted that less as a positive doctrine, resting on grounds of its own, than as a convenient point of attack against Christianity. In 1747 he wrote the Promenade du sceptique, a rather poor allegory - pointing first to the extravagances of Catholicism; second, to the vanity of the pleasures of that world which is the rival of the church; and third, to the desperate and unfathomable uncertainty of the philosophy which professes to be so high above both church and world.

Diderot's next piece was what first introduced him to the world as an original thinker, his famous Lettre sur les aveugles (1749). The immediate object of this short but pithy writing was to show the dependence of men's ideas on their five senses. It considers the case of the intellect deprived of the aid of one of the senses; and in a second piece, published afterwards, Diderot considered the case of a similar deprivation in the deaf and dumb. The Lettre sur les sourds et meets, however, is substantially a digressive examination of some points in aesthetics. The philosophic significance of the two essays is in the advance they make towards the principle of Relativity. But what interested the militant philosophers of that day was an episodic application of the principle of relativity to the master-conception of God. What makes the Lettre sur les aveugles interesting is its presentation, in a distinct though undigested form, of the modern theory of variability, and of survival by superior adaptation. It is worth noticing, too, as an illustration of the comprehensive freedom with which Diderot felt his way round any subject that he approached, that in this theoretic essay he suggests the possibility of teaching the blind to read through the sense of touch. If the Lettre sur les aveugles introduced Diderot into the worshipful company of the philosophers, it also introduced him to the penalties of philosophy. His speculation was too hardy for the authorities, and he was thrown into the prison of Vincennes. Here he remained for three months; then he was released, to enter upon the gigantic undertaking of his life.

The bookseller Lebreton had applied to him with a project for the publication of a translation into French. of Ephraim Chambers's Cyclopaedia, undertaken in the first instance by an Englishman, John Mills, and a German, Gottfried Sellius (for particulars see Encyclopaedia). Diderot accepted the proposal, but in his busy and pregnant intelligence the scheme became transformed. Instead of a mere reproduction of Chambers, he persuaded the bookseller to enter upon a new work, which should collect under one roof all the active writers, all the new ideas, all the new knowledge, that were then moving the cultivated class to its depths, but still were comparatively ineffectual by reason of their dispersion. His enthusiasm infected the publishers; they collected a sufficient capital for a vaster enterprise than they had at first planned; D'Alembert was persuaded to become Diderot's colleague; the requisite permission was procured from the government; in 1750 an elaborate prospectus announced the project to a delighted public; and in 1751 the first volume was given to the world. The last of the letterpress was issued in 1765, but it was 1772 before the subscribers received the final volumes of the plates. These twenty years were to Diderot years not merely of incessant drudgery, but of harassing persecution, of sufferings from the cabals of enemies, and of injury from the desertion of friends. The ecclesiastical party detested the Encyclopaedia, in which they saw a rising stronghold for their philosophic enemies. By 1757 they could endure the sight no longer. The subscribers had grown from 2000 to 4000, and this was a right measure of the growth of the work in popular influence and power. To any one who turns over the pages of these redoubtable volumes now, it seems surprising that their doctrines should have stirred such portentous alarm. There is no atheism, no overt attack on any of the cardinal mysteries of the faith, no direct denunciation even of the notorious abuses of the church. Yet we feel that the atmosphere of the book may well have been displeasing to authorities who had not yet learnt to encounter the modern spirit on equal terms. The Encyclopaedia takes for granted the justice of religious tolerance and speculative freedom. It asserts in distinct tones the democratic doctrine that it is the common people in a nation whose lot ought to be the main concern of the nation's government. From beginning to end it is one unbroken process of exaltation of scientific knowledge on the one hand, and pacific industry on the other. All these things were odious to the old governing classes of France; their spirit was absolutist, ecclesiastical and military. Perhaps the most alarming thought of all was the current belief that the Encyclopaedia was the work of an organized band of conspirators against society, and that a pestilent doctrine was now made truly formidable by the confederation of its preachers into an open league. When the seventh volume appeared, it contained an article on " Geneva," written by D'Alembert. The writer contrived a panegyric on the pastors of Geneva, of which every word was a stinging reproach to the abbes and prelates of Versailles. At the same moment Helvetius's book, L'Esprit, appeared, and gave a still more profound and, let us add, a more them relief and life, and it is almost a new sense fbr which I am reasonable shock to the ecclesiastical party. Authority could indebted to his genius." brook no more, and in 1759 the Encyclopaedia was formally Greuze was Diderot's favourite among contemporary artists, suppressed. and it is easy to see why. Greuze's most characteristic pictures The decree, however, did not arrest the continuance of the were the rendering in colour of the same sentiment of domestic work. The connivance of the authorities at the breach of their virtue and the pathos of common life, which Diderot attempted own official orders was common in those times of distracted with inferior success to represent upon the stage. For Diderot government. The work went on, but with its difficulties inwas above all things interested in the life of men, - not the creased by the necessity of being clandestine. And a worse thing abstract life of the race, but the incidents of individual character, than troublesome interference by the police now befell Diderot. the fortunes of a particular family, the relations of real and D'Alembert, wearied of shifts and indignities, withdrew from concrete motives in this or that special case. He delighted with the enterprise. Other powerful colleagues, Turgot among them, the enthusiasm of a born casuist in curious puzzles of right declined to contribute further to a book which had acquired and wrong, and in devising a conflict between the generalities of an evil fame. Diderot was left to bring the task to an end as he ethics and the conditions of an ingeniously contrived practical best could. For seven years he laboured like a slave at the oar. dilemma. Mostly his interest expressed itself in didactic and He wrote several hundred articles, some of them very slight, but sympathetic form; in two, however, of the most remarkable many of them most laborious, comprehensive and ample. He of all his pieces, it is not sympathetic, but ironical. Jacques le wore out his eyesight in correcting proofs, and he wearied his soul fataliste (written in 1773, but not published until 1796) is in in bringing the manuscript of less competent contributors into manner an imitation of Tristram Shandy and The Sentimental decent shape. He spent his days in the workshops, mastering the Journey. Few modern readers will find in it any true diversion. processes of manufactures, and his nights in reproducing on paper In spite of some excellent criticisms dispersed here and there, what he had learnt during the day. And he was incessantly and in spite of one or two stories that are not without a certain harassed all the time by alarms of a descent from the police. At effective realism, it must as a whole be pronounced savourless, the last moment, when his immense work was just drawing to forced, and as leaving unmoved those springs of laughter and an end, he encountered one last and crowning mortification: he of tears which are the common fountain of humour. Le Neveu discovered that the bookseller, fearing the displeasure of the de Rameau is a far superior performance. If there were any ingovernment, had struck out from the proof sheets, after they had evitable compulsion to name a masterpiece for Diderot, one must left Diderot's hands, all passages that he chose to think too hardy. select this singular " farce-tragedy." Its intention has been The monument to which Diderot had given the labour of twenty matter of dispute; whether it was designed to be merely a satire long and oppressive years was irreparably mutilated and defaced. on contemporary manners, or a reduction of the theory of selfIt is calculated that the average annual salary received by interest to an absurdity, or the application of an ironical clincher Diderot for his share in the Encyclopaedia was about £120 to the ethics of ordinary convention, or a mere setting for a sterling. " And then to think," said Voltaire, " that an army discussion about music, or a vigorous dramatic sketch of a contractor makes Boo in a day! " parasite and a human original. There is no dispute as to its Although the Encyclopaedia was Diderot's monumental work, curious literary flavour, its mixed qualities of pungency, bitterhe is the author of a shower of dispersed pieces that sowed nearly ness, pity and, in places, unflinching shamelessness. Goethe's every field of intellectual interest with new and fruitful ideas. translation (1805) was the first introduction of Le Neveu de We find no masterpiece, but only thoughts for masterpieces; no Rameau to the European public. After executing it, he gave creation, but a criticism with the quality to inspire and direct back the original French manuscript to Schiller, from whom he creation. He wrote plays - Le Fils naturel (1757) and Le Pere de had it. No authentic French copy of it appeared until the writer famille (1758) - and they are very insipid performances in the senhad been nearly forty years in his grave (1823).

timental vein. But he accompanied them by essays on dramatic It would take several pages merely to contain the list of poetry, including especially the Paradoxe sur le comedien, in Diderot's miscellaneous pieces, from an infinitely graceful trifle which he announced the principles of a new drama, - the serious, like the Regrets sur ma vieille robe de chambre up to Le Reve de domestic, bourgeois drama of real life, in opposition to the stilted D'Alembert, where he plunges into the depths of the controversy conventions of the classic French stage. It was Diderot's lessons as to the ultimate constitution of matter and the meaning of life. and example that gave a decisive bias to the dramatic taste of It is a mistake to set down Diderot for a coherent and systematic Lessing, whose plays, and his Hamburgische Dramaturgie (1768), materialist. We ought to look upon $im " as a philosopher in mark so important an epoch in the history of the modern theatre. whom all the contradictions of the time struggle with one another" In the pictorial art, Diderot's criticisms are no less rich, fertile (Rosenkranz). That is to say, he is critical and not dogmatic. and wide in their ideas. His article on " Beauty " in the There is no unity in Diderot, as there was in Voltaire .or in Encyclopaedia shows that he had mastered and passed beyond Rousseau. Just as in cases of conduct he loves to make new the metaphysical theories on the subject, and the Essai sur la ethical assumptions and argue them out as a professional sophist peinture was justly described by Goethe, who thought it worth might have done, so in the speculative problems as to the organizatranslating, as " a magnificent work, which speaks even more tion of matter, the origin of life, the compatibility between helpfully to the poet than to the painter, though to the painter physiological machinery and free will, he takes a certain standtoo it is as a blazing torch." Diderot's most intimate friend was point, and follows it out more or less digressively to its conseGrimm, one of the conspicuous figures of the philosophic body. quences. He seizes a hypothesis and works it to its end, and Grimm wrote news-letters to various high personages in Germany, this made him the inspirer in others of materialist doctrines reporting what was going on in the world of art and literature which they held more definitely than he did. Just as Diderot in Paris, then without a rival as the capital of the intellectual could not attain to the concentration, the positiveness, the activity of Europe. Diderot helped his friend at one time and finality of aim needed for a masterpiece of literature, so he could another between 175 9 and 1779, by writing for him an account not attain to those qualities in the way of dogma and system. of the annual exhibitions of paintings. These Salons are among Yet he drew at last to the conclusions of materialism, and conthe most readable of all pieces of art criticism. They have a tributed many of its most declamatory pages to the Systeme de la freshness, a reality, a life, which take their readers into a different nature of his friend D'Holbach, - the very Bible of atheism, as world from the dry and conceited pedantries of the ordinary some one styled it. All that he saw, if we reduce his opinions to virtuoso. As has been said by Sainte-Beuve, they initiated the formulae, was motion in space: "attraction and repulsion, the French into a new sentiment, and introduced people to the only truth." If matter produces life by spontaneous generation, mystery and purport of colour by ideas. " Before Diderot," and if man has no alternative but to obey the compulsion of Madame Necker said, " I had never seen anything in pictures nature, what remains for God to do?

except dull and lifeless colours; it was his imagination that gave In proportion as these conclusions deepened in him, the more did Diderot turn for the hope of the race to virtue; in other words, to such a regulation of conduct and motive as shall make us tender, pitiful, simple, contented. Hence his one great literary passion, his enthusiasm for Richardson, the English novelist. Hence, also, his deepening aversion for the political system of France, which makes the realization of a natural and contented domestic life so hard. Diderot had almost as much to say against society as even Rousseau himself. The difference between them was that Rousseau was a fervent theist. The atheism of the Holbachians, as he called Diderot's group, was intolerable to him; and this feeling, aided by certain private perversities of humour, led to a breach of what had once been an intimate friendship between Rousseau and Diderot (1757). Diderot was still alive when Rousseau's Confessions appeared, and he was so exasperated by Rousseau's stories about Grimm, then and always Diderot's intimate, that in 1782 he transformed a life of Seneca, that he had written four years earlier, into an Essai sur les regnes de Claude et de Neron (1778-1782), which is much less an account of Seneca than a vindication of Diderot and Grimm, and is one of the most rambling and inept productions in literature. As for the merits of the old quarrel between Rousseau and Diderot, we may agree with the latter, that too many sensible people would be in the wrong if Jean Jacques was in the right.

Varied and incessant as was Diderot's mental activity, it was not of a kind to bring him riches. He secured none of the posts that were occasionally given to needy men of letters; he could not even obtain that bare official recognition of merit which was implied by being chosen a member of the Academy. The time came for him to provide a dower for his daughter, and he saw no other alternative than to sell his library. When the empress Catherine of Russia heard of his straits, she commissioned an agent in Paris to buy the library at a price equal to about £1000 of English money,and then handsomely requested the philosopher to retain the books in Paris until she required them, and to constitute himself her librarian, with a yearly salary. In 1773 Diderot started on an expedition to thank his imperial benefactress in person, and he passed some months at St Petersburg. The empress received him cordially. The strange pair passed their afternoons in disputes on a thousand points of high philosophy, and they debated with a vivacity and freedom not usual in courts. " Fi, donc," said Catherine one day, when Diderot hinted that he argued with her at a disadvantage, " is there any difference among men?" Diderot returned home in 1774. Ten years remained to him, and he spent them in the industrious acquisition of new knowledge, in the composition of a host of fragmentary pieces, some of them mentioned above, and in luminous declamations with his friends. All accounts agree that Diderot was seen at his best in conversation. " He who only knows Diderot in his writings," says Marmontel, " does not know him at all. When he grew animated in talk, and allowed his thoughts to flow in all their abundance, then he became truly ravishing. In his writings he had not the art of ensemble; the first operation which orders and places everything was too slow and too painful to him." Diderot himself was conscious of the want of literary merit in his pieces. In truth he set no high value on what he had done. It is doubtful whether he was ever alive to the waste that circumstance and temperament together made of an intelligence from which, if it had been free to work systematically, the world of thought had so much to hope. He was one of those simple, disinterested and intellectually sterling workers to whom their own personality is as nothing in presence of the vast subjects that engage the thoughts of their lives. He wrote what he found to write, and left the piece, as Carlyle has said, " on the waste of accident, with an ostrich-like indifference." When he heard one day that a collected edition of his works was in the press at Amsterdam, he greeted the news with " peals of laughter," so well did he know the haste and the little heed with which those works had been dashed off.

Diderot died on the 30th of July 1784, six years after Voltaire and Rousseau, one year after his old colleague D'Alembert, and five years before D'Holbach, his host and intimate for a lifetime. Notwithstanding Diderot's peals of laughter at the thought, an elaborate and exhaustive collection of his writings in twenty stout volumes, edited by MM. Assezat and Tourneux, was completed in 1875-1877.

Authorities

Studies on Diderot by Scherer (1880); by E. Faguet (1890); by Sainte-Beuve in the Causeries du lundi; by F. Brunetiere in the Etudes critiques, 2nd series, may be consulted. In English, Diderot has been the subject of a biography by John 1Vlorley [Viscount Morley of ] (1878). See also Karl Rosenkranz, Diderots Leben and Werke (1866). For a discussion of the authenticity of the posthumous works of Diderot see R. Dominic in the Revue des deux mondes (October 15, 1902). (J. Mo.)

Categories: DER-DIF | French philosophers | French writers