That human nature is so constituted that we naturally take a pleasure in the sight of the joy of others is one of those facts which to an ordinary observer might well appear among the most patent that can be conceived. We have seen, however, that it was emphatically denied by Hobbes, and during the greater part of the last century it was fashionable among writers of the school of Helvétius to endeavour to prove that all domestic or social affections were dictated simply by a need of the person who was beloved. The reality of the pleasures and pains of sympathy was admitted by Bentham;(38) but in accordance with the whole spirit of his philosophy, he threw them as much as possible into the background, and, as I have already noticed, gave them no place in his summary of the sanctions of virtue. The tendency, however, of the later members of the school has been to recognise them fully,(39) though they differ as to the source from which they spring. According to one section our benevolent affections are derived from our selfish feelings by an association of ideas in a manner which I shall presently describe. According to the other they are an original part of the constitution of our nature. However they be generated, their existence is admitted, their cultivation is a main object of morals, and the pleasure derived from their exercise a leading motive to virtue. The differences between the intuitive moralists and their rivals on this point are of two kinds. Both acknowledge the existence in human nature of both benevolent and malevolent feelings, and that we have a natural power of distinguishing one from the other; but the first maintain and the second deny that we have a natural power of perceiving that one is better than the other. Both admit that we enjoy a pleasure in acts of benevolence to others, but most writers of the first school maintain that that pleasure follows unsought for, while writers of the other school contend that the desire of obtaining it is the motive of the action.