During his residence in Glasgow Smith continued to maintain intimate relations with his old friends in Edinburgh. He often ran through by coach to visit them, though before the road was improved it took thirteen hours to make the journey; he spent among them most part of many of his successive vacations; and he took an active share, along with them, in promoting some of those projects of literary, scientific, and social improvement with which Scotland was then rife. His patron, Henry Home, had in 1752 been raised to the bench as Lord Kames, and was devoting his new-found leisure to those works of criticism and speculation which soon gave him European fame. David Hume, after his defeat at Glasgow, had settled for a time into the modest post of librarian to the Faculty of Advocates, and was writing his History of England in his dim apartments in the Canongate. Adam Ferguson, who threw up his clerical calling in 1754, and wrote Smith from Groningen to give him "clerical titles" no more, for he was "a downright layman," came to Edinburgh, and was made Hume's successor in the Advocates' Library in 1757 and professor in the University in 1759. Robertson did not live in Edinburgh till 1758, but he used to come to town every week with his neighbour John Home before the latter left Scotland in 1757, and they held late sittings with Hume and the other men of letters in the evening. Gilbert Elliot entered Parliament in 1754, but was always back during the recess with news of men and things in the capital. The two Dalrymples—Sir David of Hailes, and Sir John of Cousland—were toiling at their respective histories, and both were personal friends of Smith's; while another, of whom Smith was particularly fond—Wilkie, the eccentric author of the Epigoniad—was living a few miles out as minister of the parish of Ratho. Wilkie always said that Smith had far more originality and invention than Hume, and that while Hume had only industry and judgment, Smith had industry and genius. His mind was at least the more constructive of the two. A remark of Smith's about Wilkie has also been preserved, and though it is of no importance, it may be repeated. Quoting Lord Elibank, he said that whether it was in learned company or unlearned, wherever Wilkie's name was mentioned it was never dropped soon, for everybody had much to say about him.[75] But that was probably due to his oddities as much as anything else. Wilkie used to plough his own glebe with his own hands in the ordinary ploughman's dress, and it was he who was the occasion of the joke played on Dr. Roebuck, the chemist, by a Scotch friend, who said to him as they were passing Ratho glebe that the parish schools of Scotland had given almost every peasant a knowledge of the classics, and added, "Here, for example, is a man working in the field who is a good illustration of that training; let us speak with him." Roebuck made some observation about agriculture. "Yes, sir," said the ploughman, "but in Sicily they had a different method," and he quoted Theocritus, to Roebuck's great astonishment.
Among Smith's chief Edinburgh friends at this period was one of his former pupils, William Johnstone—son of Sir James Johnstone of Westerhall, and nephew of Lord Elibank—who was then practising as an advocate at the Scotch bar, but ultimately went into Parliament, married the greatest heiress of the time, Miss Pulteney, niece of the Earl of Bath, and long filled an honoured and influential place in public life as Sir William Pulteney. He was, as even Wraxall admits, a man of "masculine sense" and "independent as well as upright" character, and he devoted special attention to all economic and financial questions. It was Pulteney who in his speech on the suspension of cash payments by the Bank of England in 1797—in which he proposed the establishment of another bank—quoted from some unknown source the memorable saying which is generally repeated as if it were his own, that Smith "would persuade the present generation and govern the next." He quoted the words as something that had been "well said." Between him and Smith there prevailed a warm and affectionate friendship for more than forty years, and we shall have occasion again to mention his name. But I allude to him at present because a letter still exists which was given him by Smith at this period to introduce him, during a short stay he made in London, to James Oswald, then newly appointed to office at the Board of Trade. This is the only letter that happens to be preserved of all the correspondence carried on by Smith with Oswald, and while both the occasion of it and its substance reveal the footing of personal intimacy on which they stood, its ceremonious opening and ending indicate something of the reverence and gratitude of the client to the patron:—
Sir—This will be delivered to you by Mr. William Johnstone, son of Sir James Johnstone of Westerhall, a young gentleman whom I have known intimately these four years, and of whose discretion, good temper, sincerity, and honour I have had during all that time frequent proofs. You will find in him too, if you come to know him better, some qualities which from real and unaffected modesty he does not at first discover; a refinement and depth of observation and an accuracy of judgment, joined to a natural delicacy of sentiment, as much improved as study and the narrow sphere of acquaintance this country affords can improve it. He had, first when I knew him, a good deal of vivacity and humour, but he has studied them away. He is an advocate; and though I am sensible of the folly of prophesying with regard to the future fortune of so young a man, yet I could almost venture to foretell that if he lives he will be eminent in that profession. He has, I think, every quality that ought to forward, and not one that should obstruct his progress, modesty and sincerity excepted, and these, it is to be hoped, experience and a better sense of things may in part cure him of. I do not, I assure you, exaggerate knowingly, but could pawn my honour upon the truth of every article. You will find him, I imagine, a young gentleman of solid, substantial (not flashy) abilities and worth. Private business obliges him to spend some time in London. He would beg to be allowed the privilege of waiting on you sometimes, to receive your advice how he may employ his time there in the manner that will tend most to his real and lasting improvement.
I am sensible how much I presume upon your indulgence in giving you this trouble; but as it is to serve and comply with a person for whom I have the most entire friendship, I know you will excuse me though guilty of an indiscretion; at least if you do not, you will not judge others as you would desire to be judged yourself; for I am very sure a like motive would carry you to be guilty of a greater.
I would have waited on you when you was last in Scotland had the College allowed me three days' vacation; and it gave me real uneasiness that I should be in the same country with you, and not have the pleasure of seeing you. Believe it, no man can more rejoice at your late success,[76] or at whatever else tends to your honour and prosperity, than does, Sir, your ever obliged and very humble servant,
Adam Smith.
Glasgow, 19th January 1752, N.S.[77]
Pulteney abandoned the law in which Smith prophesied eminence for him, but he was happily not cured entirely of his sincerity by his subsequent experience, for it was greatly from that quality that he derived the weight he enjoyed in the House of Commons. His contemporary in Parliament, Sir John Sinclair, says Pulteney's influence arose from the fact that he was known to be a man who never gave a vote he did not in his heart believe to be right. Having no taste for display, he lived when he had £20,000 a year about as simply as he did when he had only £200, and on that account he is sometimes accused of avarice, though he was constantly doing acts of signal liberality.
Smith's chief friend in Edinburgh was David Hume. Though their first relations were begun apparently in 1739, they could not have met much personally before Smith's settlement in Glasgow. For when Smith came to Edinburgh in 1748 Hume was abroad as secretary to General St. Clair in the Embassy at Vienna and Turin, and though he left this post in 1749, he remained for the next two years at Ninewells, his father's place in Berwickshire, and only settled in Edinburgh again just as Smith was removing to Glasgow. He would no doubt visit town occasionally, however, and before Smith was a year in Glasgow he had already entered on that correspondence with the elder philosopher which, beginning with the respectful "dear sir," grew shortly into the warmer style of "my dearest friend" as their memorable and Roman friendship ripened. Hume never paid Smith a visit in Glasgow, though he had often promised to do so, but Smith in his runs to Edinburgh spent always more and more of his time with Hume, and latterly at any rate made Hume's house his regular Edinburgh home.
In 1752 Hume had already taken Smith as one of his literary counsellors, and consulted him about the new edition of his Essays, Moral and Political, and his historical projects, and I may be permitted here and afterwards to quote parts of Hume's letters which throw any light on Smith's opinions or movements.
On the 24th of September 1752 he writes—
Dear Sir—I confess I was once of the same opinion with you, and thought that the best period to begin an English History was about Henry the Seventh, but you will please to observe that the change which then happened in public affairs was very insensible, and did not display its influence for many years afterwards.... I am just now diverted for the moment by correcting my Essays, Moral and Political for a new edition. If anything occur to you to be inserted or retrenched, I shall be obliged if you offer the hint. In case you should not have the last edition by you I shall send you a copy of it.... I had almost lost your letter by its being wrong directed. I received it late, which was the reason you got not sooner a copy of Joannes Magnus.[78]
On the 17th of December 1754 Hume gives Smith an account of his quarrel with the Faculty of Advocates, and his resolution to stay as librarian after all, for the sake of the use of the books, which he cannot do without, but to give Blacklock, the blind poet, a bond of annuity for the salary. Three weeks later he writes again, and as the letter mentions Smith's views on some historical subjects, it may be quoted:—