The Duke of Buccleugh had continued to allow Mr. Smith L.300 a-year, and the accession which he now received to his income enabled him to live, not only with comfort and independence, but to indulge the benevolence of his heart, in making numerous private benefactions.
During the remaining period of his life, he appears to have done little more than to discharge, with peculiar exactness, the duties of his office, which, though they required no great exertion, were sufficient to divert his attention from his studies. He very early felt the infirmities of old age, but his health and strength were not greatly affected till he was left alone, by the death of his mother, in 1784, and of his cousin four years after. They had been the objects of his affection for more than sixty years; and in their society he had enjoyed, from his infancy, all that he ever knew of the endearments of a family. In return for the anxious and watchful solicitude of his mother during infancy, he had the singular good fortune of being able to show his gratitude to her during a very long life; and it was often observed, that the nearest avenue to his heart was through his mother.
He now gradually declined till the period of his death, which happened in 1790. His last illness, which arose from a chronic obstruction in the bowels, was lingering and painful; but he had every consolation to soothe it which he could desire, from the tenderest sympathy of his friends, and from the completest resignation of his own mind.
His friends had been in use to sup with him every Sunday. The last time he received them, which was a few days before his death, there was a pretty numerous meeting; but not being able to sit up as usual, he retired to bed before supper. On going away, he took leave of the company, by saying, 'I believe we must adjourn this meeting to some other place.'
In a letter addressed, in the year 1787, to the principal of the university of Glasgow, in consequence of his being elected rector of that learned body, a pleasing memorial remains of the satisfaction with which he always recollected that period of his literary career, which had been more peculiarly consecrated to his academical studies. On that occasion he writes: —
'No preferment could have given me so much real satisfaction. No man can owe greater obligations to a society than I do to the university of Glasgow. They educated me; they sent me to Oxford. Soon after my return to Scotland, they elected me one of their own members, and afterwards preferred me to another office, to which the abilities and virtues of the never-to-be-forgotten Dr. Hutcheson had given a superior degree of illustration. The period of thirteen years, which I spent as a member of that society, I remember as by far the most useful, and therefore, as by far the happiest and most honourable period of my life; and now, after three-and-twenty years absence, to be remembered in so very agreeable a manner by my old friends and protectors, gives me a heart-felt joy which I cannot easily express to you.'
Not long before the death of Smith, finding his end approach rapidly, he gave orders to destroy all his manuscripts, excepting some detached essays, which he entrusted to the care of his executors. With the exception of these essays, all his papers were committed to the flames. What were the particular contents of these papers was not known, even to his most intimate friends. The additions to the Theory of Moral Sentiments, most of which were composed under severe illness, had fortunately been sent to the press in the beginning of the preceding winter; and the author lived to see the publication of this new edition.4
Some time before his last illness, when he had occasion to go to London, he enjoined his friends, to whom he had entrusted the disposal of his manuscripts, to destroy, in the event of his death, all the volumes of his lectures, doing with the rest what they pleased. When he had become weak, and saw the last period of his life approach, he spoke to his friends again upon the same subject. They entreated him to make his mind easy, as he might depend upon their fulfilling his desire. Though he then seemed to be satisfied, he, some days afterwards, begged that the volume might be immediately destroyed; which was accordingly done.
Mr. Riddell, an intimate friend of Mr. Smith, mentions, that on one of these occasions he regretted he had done so little; 'but I meant,' he added, 'to have done more; and there are materials in my papers of which I could make a great deal. – But that is now out of the question.'
That the idea of destroying such unfinished works as might be in his possession at the time of his death, was not the effect of any sudden or hasty resolution, appears from the following letter to Mr. Hume, written in 1773, at the time when he was preparing for a journey to London, with the prospect of a pretty long absence from Scotland.
'My dear friend, – As I have left the care of all my literary papers to you, I must tell you, that except those which I carry along with me, there are none worth the publication, but a fragment of a great work, which contains a history of the astronomical systems that were successively in fashion down to the time of Descartes. Whether that might not be published as a fragment of an intended juvenile work, I leave entirely to your judgment, though I begin to suspect myself, that there is more refinement than solidity in some parts of it. This little work you will find in a thin folio paper book in my back-room. All the other loose papers which you will find in that desk, or within the glass folding-doors of a bureau, which stands in my bed-room, together with about eighteen thin paper folio books, which you will likewise find within the same glass folding doors, I desire may be destroyed without any examination. Unless I die very suddenly, I shall take care that the papers I carry with me shall he carefully sent to you.'
But he himself long survived his friend Mr. Hume. The persons entrusted with his remaining papers were Dr. Black and Dr. Hutton, his executors, with whom he had long lived in habits of the closest friendship. These gentlemen afterwards collected into a volume, such of the writings of Dr. Smith as were fitted for publication: and they appeared in 1795, under the title of Essays on Philosophical Subjects. These essays had been composed early in life, and were designed to illustrate the principles of the human mind, by a theoretical deduction of the progress of the sciences and the liberal arts. The most considerable piece in this volume is, on the principles which lead and direct philosophical inquiries, illustrated by the history of astronomy, ancient physics, and ancient logic and metaphysics. The others, with the exception of an essay on the external senses, relate to the imitative and liberal arts. The contents of this volume, Mr. Smith's executors observe, appear to be parts of a plan he once had formed for giving a connected history of the liberal sciences and elegant arts; but which he had been obliged to abandon, as being far too extensive; and these parts lay beside him neglected till after his death. In them, however, will be found that happy connection, that full and accurate expression, and the same copiousness and facility of illustration, which are conspicuous in the rest of his writings.
As a writer, the character of Mr. Smith is so well known, that any observation on his merits, must appear almost unnecessary. His literary fame is circumscribed by no ordinary limits. To the voice of his own country, is added the testimony of Europe, and, indeed, of the civilized world. And had even only one volume of his inestimable writings appeared, his name would have been carried down to posterity in the first rank of those illustrious characters that adorn the last century.
In the words of Professor Stewart, it may be said, that, – of the intellectual gifts and attainments by which he was so eminently distinguished; – of the originality and comprehensiveness of his views; the extent, the variety, and the correctness of his information; the inexhaustible fertility of his invention; and the ornaments which his rich and beautiful imagination had borrowed from classical culture; – he has left behind him lasting monuments.
One observation more may he added to what is now said on his writings, that, whatever be the nature of his subject, he seldom misses an opportunity of indulging his curiosity, in tracing, from the principles of human nature, or from the circumstances of society, the origin of the opinions and the institutions which he describes.
With regard to the private character of this amiable and enlightened philosopher, it fortunately happens, that the most certain of all testimonies to his private worth may be found in the confidence, respect, and attachment which followed him through all the various relations of life.