and fluency of his eloquence; and the skill with which he wins the attention and commands the passions of his readers, leave him, among our English moralists, without a rival.

THE Dissertation on the Origin of Languages, which now forms a part of the same volume with the Theory of Moral Sentiments, was, I believe, first annexed to the second edition of that work. It is an essay of great ingenuity, and on which the author himself set a high value; but, in a general review of his publications, it deserves our attention less on account of the opinions it contains, than as a specimen of a particular sort of inquiry, which, so far as I know, is entirely of modern origin, and which seems, in a peculiar degree, to have interested Mr. Smith's curiosity. Something very similar to it may be traced in all his different works, whether moral, political, or literary; and on all these subjects he has exemplified it with the happiest success.

When, in such a period of society as that in which we live, we compare our intellectual acquirements, our opinions, manners, and institutions, with those which prevail among rude tribes, it cannot fail to occur to us as an interesting question, by what gradual steps the transition has been made from the first simple efforts of uncultivated nature, to a state of things so wonderfully artificial and complicated. Whence has arisen that systematical beauty which we admire in the structure of a cultivated language; that analogy which runs through the mixture of languages spoken by the most remote and unconnected nations; and those peculiarities by which they are all distinguished from each other? Whence the origin of the different sciences and of the different arts; and by what chain has the mind been led from their first rudiments to their last and most refined improvements? Whence the astonishing fabric of the political union; the fundamental principles which are common to all governments; and the different forms which civilized society has assumed in different ages of the world? On most of these subjects very little in

formation is to be expected from history; for long before that stage of society when men begin to think of recording their transactions, many of the most important steps of their progress have been made. A few

insulated facts may perhaps be collected from the casual observations of travellers, who have viewed the arrangements of rude nations; but nothing, it is evident, can be obtained in this way, which approaches to a regular and connected detail of human improvement.

In this want of direct evidence, we are under a necessity of supplying the place of fact by conjecture; and when we are unable to ascertain how men have actually conducted themselves upon particular occasions, of considering in what manner they are likely to have proceeded, from the principles of their nature, and the circumstances of their external situation. In such inquiries, the detached facts which travels and voyages afford us, may frequently serve as land-marks to our speculations; and sometimes our conclusions a priori, may tend to confirm the credibility of facts, which, on a superficial view, appeared to be doubtful or incredible.

Nor are such theoretical views of human affairs subservient merely to the gratification of curiosity. In examining the history of mankind, as well as in examining the phenomena of the material world, when we cannot trace the process by which an event has been produced, it is often of importance to be able to show how it may have been produced by natural causes. Thus, in the instance which has suggested these remarks, although it is impossible to determine with certainty what the steps were by which any particular language was formed, yet if we can show, from the known principles of human nature, how all its various parts might gradually have arisen, the mind is not only to a certain degree satisfied, but a check is given to that indolent philosophy, which refers to a miracle, whatever appearances, both in the natural and moral worlds, it is unable to explain.

To this species of philosophical investigation, which has no appropriated name in our language, I shall take the liberty of giving the title of Theoretical or Conjectural History; an expression which coincides pretty near

ly in its meaning with that of Natural History, as employed by Mr. Hume,* and with what some French writers have called Histoire Raisonnée.

The mathematical sciences, both pure and mixed, afford, in many of their branches, very favorable subjects for theoretical history; and a very competent judge, the late M. d'Alembert, has recommended this arrangement of their elementary principles, which is founded on the natural succession of inventions and discoveries, as the best adapted for interesting the curiosity and exercising the genius of students. The same author points out as a model a passage in Montucla's History of Mathematics, where an attempt is made to exhibit the gradual progress of philosophical speculation, from the first conclusions suggested by a general survey of the heavens, to the doctrine of Copernicus. It is somewhat remarkable, that a theoretical history of this very science (in which we have, perhaps, a better opportunity than in any other instance whatever, of comparing the natural advances of the mind with the actual succession of hypothetical systems) was one of Mr. Smith's earliest compositions, and is one of the very small number of his manuscripts which he did not destroy before his death.

I already hinted, that inquiries perfectly analogous to these may be applied to the modes of government, and to the municipal institutions which have obtained among different nations. It is but lately, however, that these important subjects have been considered in this point of view; the greater part of politicians before the time of Montesquieu having contented themselves with an historical statement of facts, and with a vague reference of laws to the wisdom of particular legislators, or to accidental circumstances, which it is now impossible to ascertain. Montesquieu, on the contrary, considered laws as originating chiefly from the circumstances of society; and attempted to account, from the changes in the condition of mankind, which take place in the different stages of their progress, for the corresponding

* See his Natural History of Religion.

alterations which their institutions undergo. It is thus, that in his occasional elucidations of the Roman jurisprudence, instead of bewildering himself among the erudition of scholiasts and of antiquaries, we frequently find him borrowing his lights from the most remote and unconnected quarters of the globe, and combining the casual observations of illiterate travellers and navigators, into a philosophical commentary on the history of law and of manners.

The advances made in this line of inquiry since Montesquieu's time have been great. Lord Kames, in his Historical Law Tracts, has given some excellent specimens of it, particularly in his Essays on the History of Property and of Criminal Law, and many ingenious speculations of the same kind occur in the works of Mr. Millar.

In Mr. Smith's writings, 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. I formerly mentioned a fragment concerning the History of Astronomy which he has left for publication; and I have heard him say more than once, that he had projected, in the earlier part of his life, a history of the other sciences on the same plan. In his Wealth of Nations, various disquisitions are introduced which have a like object in view, particularly the theoretical delineation he has given of the natural progress of opulence in a country; and his investigation of the causes which have inverted this order in the different countries of modern Europe. His lectures on jurisprudence seem, from the account of them formerly given, to have abounded in such inquiries.

I am informed by the same gentleman who favored me with the account of Mr. Smith's lectures at Glasgow, that he had heard him sometimes hint an intention of

writing a treatise a treatise upon the Greek and Roman republics. "And after all that has been published on that subject, I am convinced," says he, "that the observations of Mr. Smith would have suggested many new and impor

tant views concerning the internal and domestic circumstances of those nations, which would have displayed their several systems of policy, in a light much less artificial than that in which they have hitherto appeared."

The same turn of thinking was frequently, in his social hours, applied to more familiar subjects; and the fanciful theories which, without the least affectation of ingenuity, he was continually starting upon all the common topics of discourse, gave to his conversation a novelty and variety that were quite inexhaustible. Hence, too, the minuteness and accuracy of his knowledge on many trifling articles which, in the course of his speculations, he had been led to consider from some new and interesting point of view; and of which his lively and circumstantial descriptions amused his friends the more, that he seemed to be habitually inattentive, in so remarkable a degree, to what was passing around him.

I have been led into these remarks by the Dissertation on the Formation of Languages, which exhibits a very beautiful specimen of theoretical history, applied to a subject equally curious and difficult. The analogy between the train of thinking from which it has taken its rise, and that which has suggested a variety of his other disquisitions, will, I hope, be a sufficient apology for the length of this digression; more particularly, as it will enable me to simplify the account which I am to give afterwards, of his inquiries concerning political

economy.

I shall only observe farther on this head, that when different theoretical histories are proposed by different writers, of the progress of the human mind in any one line of exertion, these theories are not always to be understood as standing in opposition to each other. If the progress delineated in all of them be plausible, it is possible at least, that they may all have been realized; for human affairs never exhibit, in any two instances, a perfect uniformity. But whether they have been realized or no, is often a question of little consequence. In most cases, it is of more importance to ascertain the progress that is most simple, than the progress that is most agreeable to fact; for, paradoxical as the propo