Another statesman whom Smith knew well in Paris was Necker. His wife had very possibly begun by this time her rather austere salon, where free-thinking was strictly tabooed, and Morellet, her right-hand man in the entertainment of the guests, confesses the restraint was really irksome; and if she had, Morellet would probably have brought Smith there. But anyhow Sir James Mackintosh, who had means of hearing about Smith from competent sources, states explicitly that he was upon intimate terms with Necker during his residence in the French capital, that he formed only a poor opinion of that minister's abilities, and that he used to predict the fall of his political reputation the moment his head was put to any real proof, always saying of him with emphasis, "He is a mere man of detail."[169] Smith was not always lucky in his predictions, but here for once he was right.

While Smith was frequenting these various literary and philosophical salons they were all thrown into a state of unusual commotion by the famous quarrel between Rousseau and Hume. The world has long since ceased to take any interest in that quarrel, having assured itself that it all originated in the suspicions of Rousseau's insane fancy, but during the whole summer of 1766 it filled column after column of the English and continental newspapers, and it occupied much of the attention of Smith and the other friends of Hume in Paris. It will be remembered that when Rousseau was expelled from Switzerland, Hume, who was an extravagant admirer of his, offered to find him a home in England, and on the offer being accepted, brought him over to this country in January 1766. Hume first found quarters for him at Chiswick, but the capricious philosopher would not live at Chiswick because it was too near town. Hume then got him a gentleman's house in the Peak of Derby, but Rousseau would not enter it unless the owner agreed to take board. Hume induced the owner to gratify even this whim, and Rousseau departed and established himself comfortably at Wootton in the Peak of Derby. Hume next procured for him a pension of £100 a year from the king. Rousseau would not touch it unless it were kept secret; the king agreed to keep it secret. Rousseau then would not have it unless it were made public; the king again agreed to meet his whim. But the more Hume did for him the more Rousseau suspected the sincerity of his motives, and used first to assail him with the most ridiculous accusations, and then fall on his neck and implore forgiveness for ever doubting him. But at last, on the 23rd of June, in reply to Hume's note intimating the king's remission of the condition of secrecy, and the consequent removal of every obstacle to the acceptance of the pension, Rousseau gave way entirely to the evil spirit that haunted him, and wrote Hume the notorious letter, declaring that his horrible designs were at last found out.

Hume lost no time in going with his troubles to Smith, and asking him to lay the true state of the case before their Paris friends. To that letter Smith wrote the following reply:—

Paris, 6th July 1766.

My Dear Friend—I am thoroughly convinced that Rousseau is as great a rascal as you and as every man here believe him to be. Yet let me beg of you not to think of publishing anything to the world upon the very great impertinence which he has been guilty of. By refusing the pension which you had the goodness to solicit for him with his own consent, he may have thrown, by the baseness of his proceedings, a little ridicule upon you in the eyes of the court and the ministry. Stand this ridicule; expose his brutal letter, but without giving it out of your own hand, so that it may never be printed, and, if you can, laugh at yourself, and I will pawn my life that before three weeks are at an end this little affair which at present gives you so much uneasiness shall be understood to do you as much honour as anything that has ever happened to you. By endeavouring to unmask before the public this hypocritical pedant, you run the risk of disturbing the tranquillity of your whole life. By leaving him alone he cannot give you a fortnight's uneasiness. To write against him is, you may depend upon it, the very thing he wishes you to do. He is in danger of falling into obscurity in England, and he hopes to make himself considerable by provoking an illustrious adversary. He will have a great party—the Church, the Whigs, the Jacobites, the whole wise English nation—who will love to mortify a Scotchman, and to applaud a man who has refused a pension from the king. It is not unlikely, too, that they may pay him very well for having refused it, and that even he may have had in view this compensation. Your whole friends here wish you not to write,—the Baron, D'Alembert, Madame Riccoboni, Mademoiselle Rianecourt, M. Turgot, etc. etc. M. Turgot, a friend every way worthy of you, desired me to recommend this advice to you in a particular manner as his most earnest entreaty and opinion. He and I are both afraid that you are surrounded with evil counsellors, and that the advice of your English literati, who are themselves accustomed to publishing all their little gossiping stories in newspapers, may have too much influence upon you. Remember me to Mr. Walpole, and believe me, etc.

P.S.—Make my apology to Millar for not having yet answered his last very kind letter. I am preparing the answer to it, which he will certainly receive by next post. Remember me to Mrs. Millar. Do you ever see Mr. Townshend?[170]

The deep love of tranquillity this letter breathes, the dislike of publicity as a snare fatal to future quiet, the contempt for the petty vanity that makes men of letters run into print with their little personal affairs, as if they were of moment to anybody but themselves, are all very characteristic of Smith's philosophic temper of mind; and there is also—what appears on other occasions as well as this in the intercourse of the two philosophers—a certain note of affectionate anxiety on the part of the younger and graver philosopher towards the elder as towards a man of less weight of natural character and experience, and perhaps less of the wisdom of this world, than himself.

Smith seems to have shown Hume's letter to their common friends in Paris, and while deeply interested, as was only natural, in the quarrel, they with one consent took Hume's side, the only possible view of the transaction. The subject continued to furnish matter of conversation and conference among Hume's French literary friends during the whole time of Smith's residence in Paris. Hume sent Smith another letter a little later on in the month of July, which he asked him specially to show to D'Alembert. This Smith did on the 21 st, when he met D'Alembert at dinner at Mademoiselle de l'Espinasse's, in company with Turgot, Marmontel, Roux, Morellet, Saurin, and Duclos; and on the same evening D'Alembert wrote Hume that he had just had the honour of seeing Mr. Smith, who had shown him the letter he had received, and that they had talked much together about Hume and his affairs. Apparently Smith's objections to Hume publishing anything on the quarrel were now overcome; at all events, the result of this consultation of Hume's French friends was to advise publication; and accordingly a week or two later Hume sent on a complete narrative of his relations with Rousseau, together with the whole correspondence from first to last, to D'Alembert, with full permission to make any use of it he thought best, and he wrote Smith at the same time asking him to go and get a sight of it. "Pray tell me," he adds, "your judgment of my work, if it deserves the name. Tell D'Alembert I make him absolute master to retrench or alter what he thinks proper in order to suit it to the latitude of Paris."[171]

On the 27th of July Turgot writes Hume, mentioning that he had that day met Smith at Baron d'Holbach's, and they had discussed the Rousseau affair together. Smith had told him of the letter from Rousseau to General Conway, which he had been shown on the 25th by the Comtesse de Boufflers, and had repeated to him the same interpretation of that letter which he had already expressed to the Comtesse, viz. that Rousseau had not made the secrecy a ground for refusing the pension, but merely regretted that that condition made it impossible for him adequately to show his gratitude. Smith was thus inclined to give Rousseau the benefit of a better construction when a better construction was possible, but Hume writes Turgot on the 5th of August that Smith was quite wrong in that supposition.

One of those two letters of Smith's on the Rousseau affair mentions the name of Madame Riccoboni among those of Hume's friends with whom he had been in communication on the subject, and Madame Riccoboni about the same date writes Garrick that Smith and Changuion, the English ambassador's private secretary, were her two great confidants on the business of this famous quarrel. Madame Riccoboni had been a popular actress, but giving up the stage for letters, had become the most popular novelist in France. Her Letters of Fanny Butler and her History of Miss Jenny were dividing the attention of Paris with the novels of our own Richardson; and Smith, in the 1790 edition of his Theory, brackets her with Racine, Voltaire, and Richardson as instructors in "the refinements and delicacies of love and friendship." She was an effusive admirer of Smith, as, indeed, she was of Changuion, and of that bel Anglais Richard Burke, and of Garrick himself;—"you are," she writes the player, "the dearling of my heart";—and when Smith was returning home from France, she gave him the following letter of introduction to Garrick:—