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.