Those who account for the principle of approbation from self-love, do not all account for it in the same manner, and there is a good deal of confusion and inaccuracy in all their different systems. According to Mr. Hobbes, and many of his followers,[22] man is driven to take refuge in society, not by any natural love which he bears to his own kind, but because without the assistance of others he is incapable of subsisting with ease or safety. Society, upon this account, becomes necessary to him, and whatever tends to its support and welfare, he considers as having a remote tendency to his own interest, and, on the contrary, whatever is likely to disturb or destroy it, he regards as in some measure hurtful or pernicious to himself. Virtue is the great support, and vice the great disturber of human society. The former, therefore, is agreeable, and the latter offensive to every man; as from the one he foresees the prosperity, and from the other the ruin and disorder of what is so necessary for the comfort and security of his existence. Footnote 22: Puffendorff. Mandeville. That the tendency of virtue to promote, and of vice to disturb the order of society, when we consider it coolly and philosophically, reflects a very great beauty upon the one, and a very great deformity upon the other, cannot, as I have observed upon a former occasion, be called in question. Human society, when we contemplate it in a certain abstract and philosophical light, appears like a great, an immense machine, whose regular and harmonious movements produce a thousand agreeable effects. As in any other beautiful and noble machine that was the production of human art, whatever tended to render its movements more smooth and easy, would derive a beauty from this effect, and, on the contrary, whatever tended to obstruct them would displease upon that account: so virtue, which is, as it were, the fine polish to the wheels of society, necessarily pleases; while vice, like the vile rust, which makes them jar and grate upon one another, is as necessarily offensive. This account, therefore, of the origin of approbation and disapprobation, so far as it derives them from a regard to the order of society, runs into that principle which gives beauty to utility, and which I have explained upon a former occasion; and it is from thence that this system derives all that appearance of probability which it possesses. When those authors describe the innumerable advantages of a cultivated and social, above a savage and solitary life; when they expatiate upon the necessity of virtue and good order for the maintenance of the one, and demonstrate how infallibly the prevalence of vice and disobedience to the laws tend to bring back the other, the reader is charmed with the novelty and grandeur of those views which they open to him: he sees plainly a new beauty in virtue, and a new deformity in vice, which he had never taken