Though the standard by which casuists frequently determine what is right or wrong in human conduct, be its tendency to the welfare or disorder of society, it does not follow that a regard to the welfare of society should be the sole virtuous motive of action, but only that, in competition, it ought to cast the balance against all other motives.
Benevolence may, perhaps, be the sole principle of action in the Deity, and there are several not improbable arguments which tend to persuade us that it is so. It is not easy to conceive what other motive an independent and all-perfect Being, who stands in need of nothing external, and whose happiness is complete in himself, can act from. But whatever may be the case with the Deity, so imperfect a creature as man, the support of whose existence requires so many things external to him, must often act from many other motives. The condition of human nature were peculiarly hard, if those affections, which, by the very nature of our being, ought frequently to influence our conduct, could upon no occasion appear virtuous, or deserve esteem and commendation from anybody.
Those three systems, that which places virtue in propriety, that which places it in prudence, and that which makes it consist in benevolence, are the principal accounts which have been given of the nature of virtue. To one or other of them, all the other descriptions of virtue, how different soever they may appear, are easily reducible.
That system which places virtue in obedience to the will of the Deity, may be accounted either among those which make it consist in prudence, or among those which make it consist in propriety. When it is asked, why we ought to obey the will of the Deity, this question, which would be impious and absurd in the highest degree, if asked from any doubt that we ought to obey him, can admit but of two different answers. It must either be said that we ought to obey the will of the Deity because he is a Being of infinite power, who will reward us eternally if we do so, and punish us eternally if we do otherwise: or it must be said, that independent of any regard to our own happiness, or to rewards and punishments of any kind, there is a congruity and fitness that a creature should obey its creator, that a limited and imperfect being should submit to one of infinite and incomprehensible perfections. Besides one or other of these two, it is impossible to conceive that any other answer can be given to this question. If the first answer be the proper one, virtue consists in prudence, or in the proper pursuit of our own final interest and happiness; since it is upon this account that we are obliged to obey the will of the Deity. If the second answer be the proper one, virtue must consist in propriety, since the ground of our obligation to obedience is the suitableness or congruity of the sentiments of humility and submission to the superiority of the object which excites them.
That system which places virtue in utility, coincides too with that which makes it consist in propriety. According to this system, all those qualities of the mind which are agreeable or advantageous, either to the person himself or to others, are approved of as virtuous, and the contrary are disapproved of as vicious. But the agreeableness or utility of any affection depends upon the degree which it is allowed to subsist in. Every affection is useful when it is confined to a certain degree of moderation; and every affection is disadvantageous when it exceeds the proper bounds. According to this system therefore, virtue consists not in any one affection, but in the proper degree of all the affections. The only difference between it and that which I have been endeavouring to establish, is, that it makes utility, and not sympathy, or the correspondent affection of the spectator, the natural and original measure of this proper degree.
IV
Of Licentious Systems
All those systems, which I have hitherto given an account of, suppose that that there is a real and essential distinction between vice and virtue, whatever these qualities may consist in. There is a real and essential difference between the propriety and impropriety of any affection, between benevolence and any other principle of action, between real prudence and shortsighted folly or precipitate rashness. In the main, too, all of them contribute to encourage the praiseworthy, and to discourage the blameable disposition.
It may be true, perhaps, of some of them, that they tend, in some measure, to break the balance of the affections, and to give the mind a particular bias to some principles of action, beyond the proportion that is due to them. The ancient systems, which place virtue in propriety, seem chiefly to recommend the great, the awful, and the respectable virtues, the virtues of self-government and self-command; fortitude, magnanimity, independency upon fortune, the contempt of all outward accidents, of pain, poverty, exile and death. It is in these great exertions that the noblest propriety of conduct is displayed. The soft, the amiable, the gentle virtues, all the