The materials of human art are never entirely exhausted, and the applications of industry are never at an end. The national ardour is not, at any particular time, proportioned to the occasion there is for activity; nor the curiosity of the learned to the extent of subject that remains to be studied.

The ignorant and the artless, to whom objects of science are new, and whose manner of life is most simple, instead of being more active and more curious, are commonly more quiescent, and less inquisitive, than those who are best furnished with knowledge and the conveniencies of life. When we compare the particulars which occupy mankind in the beginning and in the advanced age of commercial arts, these particulars will be found greatly multiplied and enlarged in the last. The questions we have put, however, deserve to be answered; and if, in the result of commerce, we do not find the objects of human pursuit removed, or greatly diminished, we may find them at least changed; and in estimating the national spirit, we may find a negligence in one part, but ill compensated by the growing attention which is paid to another.

It is true, in general, that in all our pursuits, there is a termination of trouble, and a point of repose to which we aspire. We would remove this inconvenience, or gain that advantage, that our labours may cease. When I have conquered Italy and Sicily, says Pyrrhus, I shall then enjoy my repose. This termination is proposed in our national, as well as in our personal exertions; and, in spite of frequent experience to the contrary, is considered, at a distance, as the height of felicity. But nature has wisely, in most particulars, baffled our project; and placed no where within our reach this visionary blessing of absolute ease. The attainment of one end is but the beginning of a new pursuit; and the discovery of one art is but a prolongation of the thread by which we are conducted to further inquiries, and while we hope to escape from the labyrinth, are led to its most intricate paths.

Among the occupations that may be enumerated, as tending to exercise the invention, and to cultivate the talents of men, are the pursuits of accommodation and wealth, including all the different contrivances which serve to increase manufactures, and to perfect the mechanical arts. But it must be owned, that as the materials of commerce may continue to be accumulated without any determinate limit, so the arts which are applied to improve them, may admit of perpetual refinements. No measure of fortune, or degree of skill, is found to diminish the supposed necessities of human life; refinement and plenty foster new desires, while they furnish the means, or practise the methods, to gratify them.

In the result of commercial arts, inequalities of fortune are greatly increased, and the majority, of every people are obliged by necessity, or at least strongly incited by ambition and avarice; to employ every talent they possess. After a history of some thousand years employed in manufacture and commerce, the inhabitants of China are still the most laborious and industrious of any people on earth.

Some part of this observation may be extended to the elegant and literary arts. They too have their materials which cannot be exhausted, and proceed from desires which cannot be satiated. But the respect paid to literary merit is fluctuating, and matter of transient fashion. When learned productions accumulate, the acquisition of knowledge occupies the time that might be bestowed on invention. The object of mere learning is attained with moderate or inferior talents, and the growing list of pretenders diminishes the lustre of the few who are eminent. When we only mean to learn what others have taught, it is probable that even our knowledge will be less than that of our masters. Great names continue to be repeated with admiration, after we have ceased to examine the foundations of our praise; and new pretenders are rejected, not because they fall short of their predecessors, but because they do not excel them; or because in reality we have, without examination, taken for granted the merit of the first, and cannot judge of either.

After libraries are furnished, and every path of ingenuity is occupied, we are, in proportion to our admiration of what is already done, prepossessed against farther attempts. We become students and admirers, instead of rivals; and substitute the knowledge of books, instead of the inquisitive or animated spirit in which they were written.

The commercial and the lucrative arts may continue to prosper, but they gain an ascendant at the expense of other pursuits. The desire of profit stifles the love of perfection. Interest cools the imagination, and hardens the heart; and, recommending employments in proportion as they are lucrative, and certain in their gains, it drives ingenuity, and ambition itself, to the counter and the workshop. But, apart from these considerations, the separation of professions, while it seems to promise improvement of skill, and is actually the cause why the productions of every art become more perfect as commerce advances; yet, in its termination and ultimate effects, serves, in some measure, to break the bands of society, to substitute mere forms and rules of art in place of ingenuity, and to withdraw individuals from the common scene of occupation, on which the sentiments of the heart, and the mind, are most happily employed.

Under the distinction of callings, by which the members of polished society are separated from each other, every individual is supposed to possess his species of talent, or his peculiar skill, in which the others are confessedly ignorant; and society is made to consist of parts, of which none is animated with the spirit that ought to prevail in the conduct of nations. "We see in the same persons," said Pericles, "an equal attention to private and to public affairs; and in men who have turned to separate professions, a competent knowledge of what relates to the community; for we alone consider those who are inattentive to the state, as perfectly insignificant." This encomium on the Athenians was probably offered under an apprehension, that the contrary was likely to be charged by their enemies, or might soon take place. It happened, accordingly, that the business of state, as well as of war, came to be worse administered at Athens, when these, as well as other applications, became the object of separate professions; and the history of this people abundantly shewed, that men ceased to be citizens, even to be good poets and orators, in proportion as they came to be distinguished by the profession of these, and other separate crafts.

Animals less honoured than we, have sagacity enough to procure their food, and to find the means of their solitary pleasures; but it is reserved for man to consult, to persuade, to oppose, to kindle in the society of his fellow creatures, and to lose the sense of his personal interest or safety, in the ardour of his friendships and his oppositions.