There is no fact more conspicuous in human nature than the broad distinction, both in kind and degree, drawn between the moral and the other parts of our nature. But this on utilitarian principles is altogether unaccountable. If the excellence of virtue consists solely in its utility or tendency to promote the happiness of men, we should be compelled to canonise a crowd of acts which are utterly remote from all our ordinary notions of morality. The whole tendency of political economy and philosophical history which reveal the physiology of societies, is to show that the happiness and welfare of mankind are evolved much more from our selfish than from what are termed our virtuous acts. The prosperity of nations and the progress of civilisation are mainly due to the exertions of men who while pursuing strictly their own interests, were unconsciously promoting the interests of the community. The selfish instinct that leads men to accumulate, confers ultimately more advantage upon the world than the generous instinct that leads men to give. A great historian has contended with some force that intellectual development is more important to societies than moral development. Yet who ever seriously questioned the reality of the distinction that separates these things? The reader will probably exclaim that the key to that distinction is to be found in the motive; but it is one of the paradoxes of the utilitarian school that the motive of the agent has absolutely no influence on the morality of the act. According to Bentham, there is but one motive possible, the pursuit of our own enjoyment. The most virtuous, the most vicious, and the most indifferent of actions, if measured by this test, would be exactly the same, and an investigation of motives should therefore be altogether excluded from our moral judgments.(66) Whatever test we adopt, the difficulty of accounting for the unique and pre-eminent position mankind have assigned to virtue will remain. If we judge by tendencies, a crowd of objects and of acts to which no mortal ever dreamed of ascribing virtue, contribute largely to the happiness of man. If we judge by motives, the moralists we are reviewing have denied all generic difference between prudential and virtuous motives. If we judge by intentions, it is certain that however much truth or chastity may contribute to the happiness of mankind, it is not with philanthropic intentions that those virtues are cultivated.