There is no difficulty in identifying this enthusiastic disciple with the eccentric and bustling Earl of Buchan, the elder brother of Lord Chancellor Erskine, and of the witty and greatly beloved Harry Erskine of the Scotch bar, and the subject of the Duchess of Gordon's well-known mot: "The wit of your lordship's family has come by the mother, and been all settled on the younger branches." We know that this Earl of Buchan was a contributor to the Bee under various fictitious signatures, because he has himself republished some of his contributions, and we know that he attended Smith's class at Glasgow, because he says so in a letter to Pinkerton, the historian, mentioning having seen in Smith's library at that time a book of which Pinkerton could not find a single copy remaining anywhere—the memoirs of Lockhart of Lee, Cromwell's ambassador to France, which had been suppressed (as the Earl had been told by his maternal uncle, Sir James Steuart, the economist) at the instance of Lockhart, the famous advocate, afterwards Lord Covington, because the family had turned Jacobite, and disliked the association with the Commonwealth.[38] The Earl gives the year of his attendance at Glasgow as 1760, but he must have continued there more than one session, for he attended Millar's lectures as well as Smith's, and Millar was not there till the session 1761-62; and it is on the whole most likely that this is the very young nobleman whom Dr. Alexander Carlyle met in company with Smith at a large supper party in April 1763, and concerning whom he mentions that he himself whispered after a little to Smith that he wondered how he could set this young man so high who appeared to be so foolish, and Smith answered, "We know that perfectly, but he is the only lord in our College."
It will be observed that Lord Buchan says Smith read private lectures to him. Smith's public lectures he was not accustomed to read in any of his classes, but he seems to have found it more convenient in teaching a single pupil to read them, and interpose oral comments and illustrations as he went along. Others of Smith's old students besides Lord Buchan express their obligations to the conversations they were privileged to have with him. Dugald Stewart, Brougham informs us, used to decline to see his students, because he found them too disputatious, and he disliked disputing with them about the correctness of the doctrines he taught. But Smith, by all accounts, was extremely accessible, and was even in the habit of seeking out the abler men among them, inviting them to his house, discussing with them the subjects of his lectures or any other subject, and entering sympathetically into their views and plans of life. John Millar, having occasion to mention Smith's name in his Historical View of the English Government, takes the opportunity to say: "I am happy to acknowledge the obligations I feel myself under to this illustrious philosopher by having at an early period of life had the benefit of his lectures on the history of civil society, and enjoying his unreserved conversation on the same subject."[39]
Millar, it may be added, was one of Smith's favourite pupils, and after obtaining the chair of Jurisprudence in his old College, one of his chief associates, and Smith held so high an opinion of Millar's unique powers as a stimulating teacher that he sent his cousin, David Douglas, to Glasgow College for no other purpose but to have the advantage of the lectures and conversation of Millar. Jeffrey used to say that the most bracing exercises a student in Glasgow underwent in those days were the supper disputations at Professor Millar's house, and that, able and learned as his works are, "they revealed nothing of that magical vivacity which made his conversation and his lectures still more full of delight than of instruction." Though he always refused to accept Smith's doctrine of free trade, Millar was the most effective and influential apostle of Liberalism in Scotland in that age, and Jeffrey's father could never forgive himself for having put his son to Glasgow, where, though he was strictly forbidden to enter Millar's class-room, "the mere vicinity of Millar's influence" had sent him back a Liberal.[40]
Now it is this interesting and famous lecturer from whom we obtain the fullest account of Smith's qualities as a lecturer and of the substance of his lectures.
"In the professorship of logic," he says, "to which Mr. Smith was appointed on his first introduction into this University, he soon saw the necessity of departing widely from the plan that had been followed by his predecessors, and of directing the attention of his pupils to studies of a more interesting and useful nature than the logic and metaphysics of the schools. Accordingly, after exhibiting a general view of the powers of the mind, and explaining as much of the ancient logic as was requisite to gratify curiosity with respect to an artificial method of reasoning which had once occupied the universal attention of the learned, he dedicated all the rest of his time to the delivering of a system of rhetoric and belles-lettres."
In moral philosophy "his course of lectures," says Millar, "was divided into four parts. The first contained natural theology, in which he considered the proofs of the being and attributes of God, and those principles of the human mind upon which religion is founded. The second comprehended ethics, strictly so called, and consisted chiefly of the doctrines which he afterwards published in his Theory of Moral Sentiments. In the third part he treated at more length of that branch of morality which relates to justice, and which, being susceptible of precise and accurate rules, is for that reason capable of a full and particular explanation.
"Upon this subject he followed the plan that seems to be suggested by Montesquieu, endeavouring to trace the gradual progress of jurisprudence, both public and private, from the rudest to the most refined ages, and to point out the effects of those arts which contribute to subsistence and to the accumulation of property, in producing correspondent improvements or alterations in law and government. This important branch of his labours he also intended to give to the public; but this intention, which is mentioned in the conclusion of the Theory of Moral Sentiments, he did not live to fulfil.
"In the last of his lectures he examined those political regulations which are founded, not upon the principle of justice but that of expediency, and which are calculated to increase the riches, the power, and the prosperity of a state. Under this view he considered the political institutions relating to commerce, to finances, to ecclesiastical and military establishments. What he delivered on those subjects contained the substance of the work he afterwards published under the title of An Inquiry into the Nature and Causes of the Wealth of Nations."[41]
Under the third part were no doubt included those lectures on the history of civil society to which Millar expresses such deep obligation, and of which another pupil of Smith's, Professor Richardson of the Humanity chair in Glasgow—a minor poet of considerable acceptance in his day—also speaks with lively gratitude, particularly of those "on the nature of those political institutions that succeeded the downfall of the Roman Empire, and which included an historical account of the rise and progress of the most conspicuous among the modern European governments."[42]
Richardson tells us, too, that Smith gave courses of lectures on taste, on the history of philosophy, and on belles-lettres, apparently continuing to utilise his old lectures on this last subject occasionally even after his translation from the chair to which they properly appertained, and that he was very fond of digressing into literary criticism from his lectures on any subject. "Those who received instruction from Dr. Smith," says Richardson, "will recollect with much satisfaction many of those incidental and digressive illustrations and discussions, not only in morality but in criticism, which were delivered by him with animated and extemporaneous eloquence as they were suggested in the course of question and answer. They occurred likewise, with much display of learning and knowledge, in his occasional explanations of those philosophical works, which were also a very useful and important subject of examination in the class of moral philosophy."[43]