Now, as morality would never have existed but for the necessity of protecting one human being against another, the power of the mind that adopts other people's interests and views must always be of vital moment as a spring of moral conduct; and Adam Smith has done great service in developing the workings of the sympathetic impulse. He does not discuss Free-will. On the question of Disinterested Conduct, he gives no clear opinion. While denying that our sympathetic impulses are a refinement of self-love, he would seem to admit that they bring their own pleasure with them; so that, after all, they do not detract from our happiness. In other places, he recognizes self-sacrifice, but gives no analysis of the motives that lead to it; and seems to think, with many other moralists, that it requires a compensation in the next world. III.--His theory of the constituents of Happiness is simple, primitive, and crude, but is given with earnest conviction. Ambition he laughs to scorn. 'What, he asks, can be added to the happiness of the man who is in health, out of debt, and has a clear conscience?' Again, 'the chief part of happiness consists in the consciousness of being beloved, hence, sudden changes of fortune seldom contribute to happiness.' But what he dwells upon most persistently, as the prime condition of happiness, is Contentment, and Tranquillity. IV.--On the Moral Code, he has nothing peculiar. As to the means and inducements to morality, he does not avail himself of the fertility of his own principle of Sympathy. Appeals to sympathy, and the cultivation of the power of entering into the feelings of others, could easily be shown to play a high part in efficacious moral suasion. V.--He affords little or no grounds for remarking on the connexion of Morality with Politics. Our duties as citizens are a part of Morality, and that is all. VI.--He gives his views on the alliance of Ethics with Religion. He does not admit that we should refer to the Religious sanction on all occasions. He assumes a benevolent and all-wise Governor of the world, who will ultimately redress all inequalities, and remedy all outstanding injustice. What this Being approves, however, is to be inferred solely from the principles of benevolence. Our regard for him is to be shown, not by frivolous observances, sacrifices, ceremonies, and vain supplications, but by just and beneficent actions. The author studiously ignores a revelation, and constructs for himself a Natural Religion, grounded on a benevolent and just administration of the universe. In Smith's Essay, the purely scientific enquiry is overlaid by practical and hortatory dissertations, and by eloquent delineations of character and of beau-ideals of virtuous conduct. His style being thus pitched to the popular key, he never pushes home a metaphysical analysis; so that even his favourite theme, Sympathy, is not philosophically sifted to the bottom. DAVID HARTLEY. [1705-1757.]