Voltaire's education, the Cirey residence may be justly said to be the first stage of his literary manhood. He had written important and characteristic work before; but he had always been in a kind of literary Wanderjahre. He now obtained a settled home for many years, and, taught by his numerous brushes with the authorities, he began and successfully carried out that system of keeping out of personal harm's way, and of at once denying any awkward responsibility, which made him for nearly half a century at once the chief and the most prosperous of European heretics in regard to all established ideas. It was not till the summer of 1734 that Cirey, a half-dismantled country house on the borders of Champagne and Lorraine, was fitted up with Voltaire's money and became the headquarters of himself, of his hostess, and now and then of her accommodating husband. Many pictures of the life here, some of them not a little malicious, survive. It was not entirely a bed of roses, for the “respectable Emily's” temper was violent, and after a time she sought lovers who were not so much des cerébraux as Voltaire. But it provided him with a safe and comfortable retreat, and with every opportunity for literary work. In March 1735 the ban was formally taken off him, and he was at liberty to return to Paris, a liberty of which he availed himself sparingly.
At Cirey he wrote indefatigably and did not neglect business. The principal literary results of his early years here were the Discours en vers sur l'homme, the play of Alzire and L'Enfant prodigue (1736), and a long treatise on the Newtonian system which he and Madame du Châtelet wrote together. But, as usual, Voltaire's extraordinary literary industry was shown rather in a vast amount of fugitive writings than in substantive works, though for the whole space of his Cirey residence he was engaged in writing, adding to, and altering the Pucelle. In the very first days of his sojourn he had written a pamphlet with the imposing title of Treatise on Metaphysics. Of metaphysics proper Voltaire neither then nor at any other time understood anything, and the subject, like every other, merely served him as a pretext for laughing at religion with the usual reservation of a tolerably affirmative deism. In March 1736 he received his first letter from Frederick of Prussia, then crown prince only. He was soon again in trouble, this time for the poem of Le Mondain, and he at once crossed the frontier and then made for Brussels. He spent about three months in the Low Countries, and in March 1737 returned to Cirey, and continued writing, making experiments in physics (he had at this time a large laboratory), and busying himself with iron-founding, the chief industry of the district. The best-known accounts of Cirey life, those of Madame de Grafigny, date from the winter of 1738-39; they are somewhat spiteful but very amusing, depicting the frequent quarrels between Madame du Châtelet and Voltaire, his intense suffering under criticism, his constant dread of the surreptitious publication of the Pucelle (which nevertheless he could not keep his hands from writing or his tongue from reciting to his visitors), and so forth. The chief and most galling of his critics at this time was the Abbé Desfontaines, and the chief of Desfontaines's attacks was entitled La Voltairomanie, in reply to a libel of Voltaire's called Le Présenatif. Both combatants had, according to the absurd habit of the time, to disown their works, Desfontaines's disavowal being formal and procured by the exertion of all Voltaire's own influence both at home and abroad. For he had as little notion of tolerance towards others as of dignity in himself. In April 1739 a journey was made to Brussels, to Paris, and then again to Brussels, which was the headquarters for a considerable time, owing to some law affairs, of the Du Châtelets. Frederick, now king of Prussia, made not a few efforts to get Voltaire away from Madame du Châtelet, but unsuccessfully, and the king earned the lady's cordial hatred by persistently refusing or omitting to invite her. At last, in September 1740, master and pupil met for the first time at Cleves, an interview followed three months later by a longer visit. Brussels was again the headquarters in 1741, by which time Voltaire had finished the best and the second or third best of his plays, Mérope and Mahomet. Mahomet was played first at Lille in that year, it did not appear in Paris till August next year, and Mérope not till 1743. This last was, and deserved to be, the most successful of its author's whole theatre. It was in this same year that he received the singular diplomatic mission to Frederick which nobody seems to have taken seriously, and after his return the oscillation between Brussels, Cirey and Paris was resumed. During these years much of the Essai sur les mœurs and the Siècle de Louis XIV. was composed. He also returned, not too well-advisedly, to the business of courtiership, which he had given up since the death of the regent. He was much employed, owing to Richelieu's influence, in the fêtes of the dauphin's marriage, and was rewarded through the influence of Madame de Pompadour on New Year's Day 1745 by the appointment to the post of historiographer-royal, once jointly held by Racine and Boileau. The situation itself and its accompanying privileges were what Voltaire chiefly aimed at, but there was a salary of two thousand livres attached, and he had the year before come in for three times as much by the death of his brother. In the same year he wrote a poem on Fontenoy, he received medals from the pope and dedicated Mahomet to him, and he wrote court divertissements and other things to admiration. But he was not a thoroughly skilful courtier, and one of the best known of Voltairiana is the contempt or at least silence with which Louis XV.—a sensualist but no fool—received the maladroit and almost insolent inquiry Trajan est-il content? addressed in his hearing to Richelieu at the close of a piece in which the emperor had appeared with a transparent reference to the king. All this assentation had at least one effect. He, who had been for years admittedly the first writer in France, had been repeatedly passed over in elections to the Academy. He was at last elected in the spring of 1746, and received on the 9th of May. Then the tide began to turn. His favour at court had naturally exasperated his enemies; it had not secured him any real friends, and even a gentlemanship of the chamber was no solid benefit, except from the money point of view. He did not indeed hold it very long, but was permitted to sell it for a large sum, retaining the rank and privileges. He had various proofs of the instability of his hold on the king during 1747 and in 1748. He once lay in hiding for two months with the duchesse du Maine at Sceaux, where were produced the comedietta of La Prude and the tragedy of Rome sauvée, and afterwards for a time lived chiefly at Lunéville; here Madame du Châtelet had established herself at the court of King Stanislaus, and carried on a liaison with Saint-Lambert, an officer in the king's guard. In September 1749 she died after the birth of a child.
The death of Madame du Châtelet is another turning-point in the history of Voltaire. He was fifty-five, but he had nearly thirty years more to live, and he had learnt much during what may be called his Cirey cohabitation. For some time, however, after Madame du Châtelet's death he was in a state of pitiable unsettlement. At first, after removing his goods from Cirey, he hired the greater part of the Châtelet town house, and then the whole. He had some idea of settling down in Paris, and might perhaps have done so if mischief had not been the very breath of his nostrils. He went on writing satiric tales like Zadig. He engaged in a foolish and undignified struggle with Crébillon père (not fils), a rival set up against him by Madame de Pompadour, but a dramatist who, in part of one play, Rhadamiste et Zénobie, has struck a note of tragedy in the grand Cornelian strain, which Voltaire could never hope to echo. Semirame (1748), Oreste (1750) and Rome sauvée itself were all products of this rivalry. He used the most extraordinary efforts to make himself more popular than he was, but he could not help being uncomfortable.
All this time Frederick of Prussia had been continuing his invitations. Voltaire left Paris on the 15th of June 1751, and reached Berlin on the 10th of July. This Berlin visit is more or less familiar to English readers from the two great essays of Macaulay and Carlyle as well as from the Frederick of the