It has been justly enough argued, concerning Rousseau (see below, p. 287), that the generation of the Revolution made him its prophet in his own despite, and that had he lived twenty years longer he would have been its vehement adversary. But this does not alter the facts as to his influence. A great writer of emotional genius, like Rousseau, inevitably impels men beyond the range of his own ideals, as in recent times Ruskin and Tolstoy, both anti-Socialists, have led thousands towards Socialism. In his own generation and the next, Rousseau counted essentially for criticism of the existing order; and it was the revolutionaries, never the conservatives, who acclaimed him. De Tocqueville (Hist. philos. du règne de Louis XV, 1849, i, 33) speaks of his “impiété dogmatique.” Martin du Theil, in his J. J. Rousseau apologiste de la religion chrétienne (2e édit. 1840), makes out his case by identifying emotional deism with Christianity, as did Rousseau himself when he insisted that “the true Christianity is only natural religion well explained.” Rousseau’s praise of the gospel and of the character of Jesus was such as many deists acquiesced in. Similar language, in the mouth of Matthew Arnold, gave rather more offence to Gladstone, as a believing Christian, than did the language of simple unbelief; and a recent Christian polemist, at the close of a copious monograph, has repudiated the association of Rousseau with the faith (see J. F. Nourrisson, J. J. Rousseau et le Rousseauisme, 1903, p. 497 sq.). What is true of him is that he was more religiously a theist than Voltaire, whose impeachment of Providence in the poem on the Earthquake of Lisbon he sought strenuously though not very persuasively to refute in a letter to the author. But, with all his manifold inconsistencies, which may be worked down to the neurosis so painfully manifest in his life and in his relations to his contemporaries, he never writes as a believer in the dogmas of Christianity or in the principle of revelation; and it was as a deist that he was recognized by his Christian contemporaries. A demi-Christian is all that Michelet will call him. His compatriot the Swiss pastor Roustan, located in London, directed against him his Offrande aux Autels et à la Patrie, ou Défense du Christianisme (1764), regarding him as an assailant. The work of the Abbé Bergier, Le Déisme refuté par lui-même (1765, and later), takes the form of letters addressed to Rousseau, and is throughout an attack on his works, especially the Émile. When, therefore, Buckle (1-vol. ed. p. 475) speaks of him as not having attacked Christianity, and Lord Morley (Rousseau, ch. xiv) treats him as creating a religious reaction against the deists, they do not fully represent his influence on his time. As we have seen, he stimulated Voltaire to new audacities by his example.

17. An interlude in the critical campaign, little noticed at the time, developed importance a generation later. In 1753 Jean Astruc, doctor of medicine, published after long hesitation his Conjectures on the original documents which Moses seems to have used in composing the book of Genesis. Only in respect of his flash of insight into the composite structure of the Pentateuch was Astruc a freethinker. His hesitation to publish was due to his fear that les pretendus esprits forts might make a bad use of his work; and he was quite satisfied that Moses was the author of the Pentateuch as it stands. The denial of that authorship, implied in the criticisms of Hobbes and Spinoza, he described as “the disease of the last century.” This attitude may explain the lack of interest in Astruc’s work shown by the freethinkers of the time.[122] Nonetheless, by his perception of the clue given by the narrative use of the two names Yahweh and Elohim in Genesis, he laid a new foundation of the Higher Criticism of the Bible in modern times, advancing alike on Spinoza and on Simon. For freethought he had “builded better than he knew.”

18. In the select Parisian arena of the Académie, the intellectual movement of the age is as it were dramatized; and there more clearly than in the literary record we can trace the struggle of opinions, from the admission of Voltaire (1746) onwards. In the old days the Académie had been rather the home of convention, royalism, and orthodoxy than of ideas, though before Voltaire there were some freethinking members of the lesser Académies, notably Boindin.[123] The admission of Montesquieu (1728), after much opposition from the court, preludes a new era; and from the entrance of Voltaire, fourteen years after his first attempt,[124] the atmosphere begins perceptibly to change. When, in 1727, the academician Bonamy had read a memoir On the character and the paganism of the emperor Julian, partly vindicating him against the aspersions of the Christian Fathers, the Academy feared to print the paper, though its author was a devout Catholic.[125] When the Abbé La Bletterie, also orthodox, read to the Academy portions of his Vie de Julien, the members were not now scandalized, though the Abbé’s Jansenism moved the King to veto his nomination. So, when Blanchard in 1735 read a memoir on Les exorcismes magiques there was much trepidation among the members, and again the Secretary inserted merely an analysis, concluding with the words of Philetas, “Believe and fear God; beware of questioning.”[126] Even such a play of criticism as the challenging of the early history of Rome by Lévesque de Pouilly (brother of Lévesque de Burigny) in a dissertation before the Académie in 1722, roused the fears and the resentment of the orthodox; the Abbé Sallier, in undertaking to refute him, insinuated that he had shown a spirit which might be dangerous to other beliefs; and whispers of atheism passed among the academicians.[127] Pouilly, who had been made a freethinker by English contacts, went again to England later, and spent his last years at Rheims.[128] His thesis was much more powerfully sustained in 1738 by Beaufort, in the famous dissertation Sur l’incertitude des cinq premiers siècles de l’histoire romaine; but Beaufort was of a refugee-Huguenot stock; his book was published, under his initials, at Utrecht; and not till 1753 did the Académie award him a medal—on the score of an earlier treatise. And in 1748 the Religio veterum Persarum of the English Orientalist Hyde, published as long before as 1700, found a vehement assailant within the Academy in the Abbé Foucher, who saw danger in a favourable view of any heathen religion.

Yet even in the time of Louis XIV the Abbé Mongault, tutor of the son of the Regent, and noted alike for his private freethinking and for the rigid orthodoxy which he instilled into his pupil, treated the historic subject of the divine honours rendered to Roman governors with such latitude as to elicit from Fréret, in his éloge of Mongault, the remark that the tutor had reserved to himself a liberty of thought which he doubtless felt to be dangerous in a prince.[129] And after 1750 the old order can be seen passing away. D’Argenson notes in his diary in 1754: “I observe in the Académie de belles-lettres, of which I am a member, that there begins to be a decided stir against the priests. It began to show itself at the death of Boindin, to whom our bigots refused a service at the Oratory and a public commemoration. Our deist philosophers were shocked, and ever since, at each election, they are on guard against the priests and the bigots. Nowhere is this division so marked, and it begins to bear fruits.”[130] The old statesman indicates his own sympathies by adding: “Why has a bad name been made of the title of deist? It is that of those who have true religion in their hearts, and who have abjured a superstition that is destructive to the whole world.” It was in this year that D’Alembert, who took nearly as much pains to stay out as Voltaire had done to enter,[131] was elected a member; and with two leading encyclopédistes in the forty, and a friendly abbé (Duclos) in the secretaryship (1755), and another zealous freethinker, Lévesque de Burigny, admitted in 1756,[132] the fortunes of freethought were visibly rising. Its influence was thrown on the side of the academic orator Thomas, a sincere believer but a hater of all persecution, and as such offensive to the Church party.[133]

19. In 1759 there came a check. The Encyclopédie, which had been allowed to resume publication after its first suppression in 1752, was again stopped; and the battle between philosophes and fanatics, dramatized for the time being in Palissot’s comedy Les Philosophes and in Voltaire’s rejoinder to Fréron, L’Écossaise, came to be fought out in the Academy itself. The poet Lefranc de Pompignan,[134] elected in 1759 without any opposition from the freethinkers, had in his youth translated Pope’s “Deist’s Prayer,” and had suffered for it to the extent of being deprived by D’Aguesseau of his official charge[135] for six months. With such a past, with a keen concern for status, and with a character that did not stick at tergiversation, Pompignan saw fit to signalize his election by making his discours de réception (March, 1760) a violent attack on the whole philosophic school, which, in his conclusion, he declared to be undermining “equally the throne and the altar.” The academicians heard him out in perfect silence, leaving it to the few pietists among the audience to applaud; but as soon as the reports reached Ferney there began the vengeance of Voltaire. First came a leaflet of stinging sentences, each beginning with Quand: “When one has translated and even exaggerated the ‘Deist’s Prayer’ composed by Pope ...,” and so on. The maddened Pompignan addressed a fatuous memorial to the King (who notoriously hated the philosophes, and had assented only under petticoat influence to Voltaire’s election[136]); and, presuming to print it without the usual official sanction, suffered at the hands of Malesherbes the blow of having the printer’s plant smashed. Other combatants entered the fray. Voltaire’s leaflet “les quand” was followed by “les si, les pour, les qui, les quoi, les car, les ah!”—by him or others—and the master-mocker produced in swift succession three satires in verse,[137] all accompanied by murderous prose annotations. The speedy result was Pompignan’s retirement into provincial life. He could not face the merciless hail of rejoinders; and when at his death, twenty-five years later, the Abbé Maury had to pronounce his éloge, the mention of his famous humiliation was hardly tempered by compassion.[138]

20. Voltaire could not compass, as he for a time schemed, the election of Diderot; but other philosophes of less note entered from time to time;[139] Marmontel was elected in 1763; and when in 1764 the Academy’s prize for poetry was given to Chamfort for a piece which savoured of what were then called “the detestable principles of Montesquieu, Rousseau, and Helvétius,” and in 1768 its prize for eloquence went to the same writer, the society as a whole had acquired a certain character for impiety.[140] In 1767 there had occurred the famous ecclesiastical explosion over Marmontel’s philosophic romance Bélisaire, a performance in which it is somewhat difficult to-day to detect any exciting quality. It was by a chapter in praise of toleration that the “universal and mediocre Marmontel”[141] secured from the Sorbonne the finest advertisement ever given to a work of fiction, the ecclesiastics of the old school being still too thoroughly steeped in the past to realize that a gospel of persecution was a bad warcry for a religion that was being more and more put on the defensive. Only an angry fear before the rising flood of unlicensed literature, combining with the long-baffled desire to strike some blow at freethinking, could have moved the Sorbonne to select for censure the duly licensed work[142] of a popular academician and novelist; and it should be remembered that it was at a time of great activity in the unlicensed production of freethinking literature that the attack was made. The blow recoiled signally. The book was of course promptly translated into all the languages of Europe, selling by tens of thousands;[143] and two sovereigns took occasion to give it their express approval. These were the Empress Catherine (who caused the book to be translated by members of her court while she was making a tour of her empire, she herself taking a chapter), and the Empress Maria-Theresa. From Catherine, herself a freethinker, the approbation might have been expected; but the known orthodoxy and austerity of Maria-Theresa made her support the more telling. In France a small literary tempest raged for a year. Marmontel published his correspondence with the syndic of the Sorbonne and with Voltaire; and in all there appeared some dozen documents pro and con, among them an anonymous satire by Turgot, Les xxxvii verités opposées aux xxxvii impiétés de Bélisaire, “Par un Bachelier Ubiquiste,”[144] which, with the contributions of Voltaire, gave the victim very much the best of the battle.

21. Alongside of the more strictly literary or humanist movement, too, there went on one of a scientific kind, which divided into two lines, a speculative and a practical. On the former the freelance philosopher Julien Offray la Mettrie gave a powerful initial push by his materialistic theses, in which a medical knowledge that for the time was advanced is applied with a very keen if unsystematic reasoning faculty to the primary problem of mind and body; and others after him continued the impulse. La Mettrie produced his Natural History of the Mind in 1745;[145] and in 1746 appeared the Essay on the Origin of Human Knowledge of the Abbé Condillac, both essentially rationalistic and anti-theological works, though differing in their psychological positions, Condillac being a non-materialist, though a strong upholder of “sensism.” La Mettrie followed up his doctrine with the more definitely materialistic but less heedfully planned works, L’Homme Plante and L’Homme Machine (1748), the second of which, published at Leyden[146] and wickedly dedicated to the pious Baron von Haller, was burned by order of the magistrates, its author being at the same time expelled from Holland. Both books are remarkable for their originality of thought, biological and ethical. Though La Mettrie professed to think the “greatest degree of probability” was in favour of the existence of a personal God,[147] his other writings gave small support to the hypothesis; and even in putting it he rejects any inference as to worship. And he goes on to quote very placidly an atheist who insists that only an atheistic world can attain to happiness. It is notable that he, the typical materialist of his age, seems to have been one of its kindliest men, by the consent of all who knew him,[148] though heedless in his life to the point of ending it by eating a monstrous meal out of bravado.

The conventional denunciation of La Mettrie (endorsed by Lord Morley, Voltaire, p. 122) proceeds ostensibly upon those of his writings in which he discussed sexual questions with absolute scientific freedom. He, however, insisted that his theoretic discussion had nothing whatever to do with his practice; and there is no evidence that he lived otherwise than as most men did in his age, and ours. Still, the severe censure passed on him by Diderot (Essai sur les règnes de Claude et de Néron, ed. 1782, ii, 22–24) seems to convict him of at least levity of character. Voltaire several times holds the same tone. But Diderot writes so angrily that his verdict incurs suspicion.

As Lange notes, there has been much loose generalization as to the place and bearing of La Mettrie in the history of French thought. Hettner, who apparently had not thought it worth while to read him, has ascribed his mental movement to the influence of Diderot’s Pensées philosophiques (1746), whereas it had begun in his own Histoire naturelle de l’âme, published a year before. La Mettrie’s originality and influence in general have been underestimated as a result of the hostility set up by disparagement of his character. The idea of a fundamental unity of type in nature—an idea underlying all the successive steps of Lamarck, Geoffroy Saint-Hilaire, Goethe, and others, towards the complete conception of evolution—is set forth by him in L’Homme Plante in 1748, the year in which appeared De Maillet’s Telliamed. Buffon follows in time as in thought, only beginning his great work in 1749; Maupertuis, with his pseudonymous dissertation on the Universal system of Nature, applies La Mettrie’s conception in 1751; and Diderot’s Pensées sur l’interprétation de la nature, stimulated by Maupertuis, appeared only in 1754. La Mettrie proceeded from the classification of Linnæus, but did not there find his idea. In the words of Lange, “these forgotten writings are in nowise so empty and superficial as is commonly assumed.” Gesch. des Materialismus, i, 328–29. Lange seems to have been the first to make a judicial study of La Mettrie’s work, as distinguished from the scandals about his character.

22. A more general influence, naturally, attached to the simple concrete handling of scientific problems. The interest in such questions, noticeable in England at the Restoration and radiating thence, is seen widely diffused in France after the publication of Fontenelle’s Entretiens, and thenceforward it rapidly strengthens. Barren theological disputations set men not merely against theology, but upon the study of Nature, where real knowledge was visibly possible. To a certain extent the study took openly heretical lines. The Abbé Lenglet du Fresnoy, who was four times imprisoned in the Bastille, supplied material of which D’Argens made much use, tending to overthrow the Biblical chronology and to discredit the story of the Flood.[149] Benoît de Maillet (1656–1738), who had been for fifteen years inspector of the French establishments in Egypt and Barbary, left for posthumous publication (1748) a work of which the first title was an anagram of his name, Telliamed, ou Entretiens d’un philosophe indien avec un missionaire français. Of this treatise the thesis is that the shell deposits in the Alps and elsewhere showed the sea to have been where land now was; and that the rocks were gradually deposited in their different kinds in the fashion in which even now are being formed mud, sand, and shingle. De Maillet had thus anticipated the central conception of modern geology, albeit retaining many traditional delusions. His abstention from publication during his lifetime testifies to his sense of the danger he underwent, the treatise having been printed by him only in 1735, at the age of seventy-nine; and not till ten years after his death was it given to the world, with “a preface and dedication so worded as, in case of necessity, to give the printer a fair chance of falling back on the excuse that the work was intended for a mere jeu d’esprit.”[150]