[Footnote 17: Bain, _Emotions and the Will_, p. 268.] [Footnote 18: Tucker, _Light of Nature Pursued_, i. 154.] We have already seen that sympathy springing from an altruistic sentiment may produce, not only disinterested resentment, but disinterested retributive kindly emotion as well. When taking a pleasure in the benefit bestowed on our neighbour, we naturally look with kindness upon the benefactor; and just as sympathetic resentment may be produced by the cognition of the outward signs of resentment, so sympathetic retributive kindly emotion may be produced by the signs of retributive kindliness. Language communicates emotions by terms of praise, as well as by terms of condemnation; and a reward, like a punishment, tends to reproduce the emotion from which it sprang. Moreover, men have disinterested likings, as they have disinterested dislikes. As an instance of such likings may be mentioned the common admiration of courage when felt irrespectively of the object for which it is displayed. Having thus found the origin of disinterested retributive emotions, we have at the same time partly explained the origin of the moral emotions. But, as we have seen, disinterestedness is not the sole characteristic by which moral indignation and approval are distinguished from other retributive emotions: a moral emotion is assumed to be impartial, or, at least, is not knowingly partial, and it is coloured by the feeling of being publicly shared. However, the real problem which we have now to solve is not how retributive emotions may become apparently impartial and be coloured by a feeling of generality, but why disinterestedness, apparent impartiality, and the flavour of generality have become characteristics by which so-called moral emotions are distinguished from other retributive emotions. The solution of this problem lies in the fact that society is the birthplace of the moral consciousness; that the first moral judgments expressed, not the private emotions of isolated individuals, but emotions which were {118} felt by the society at large; that tribal custom was the earliest rule of duty. Customs have been defined as public habits, as the habits of a certain circle, a racial or national community, a rank or class of society. But whilst being a habit, custom is at the same time something else as well. It not merely involves a frequent repetition of a certain mode of conduct, it is also a rule of conduct. As Cicero observes, the customs of a people "are precepts in themselves."[19] We say that "custom commands," or "custom demands," and speak of it as "strict" and "inexorable"; and even when custom simply allows the commission of a certain class of actions, it implicitly lays down the rule that such actions are not to be interfered with. [Footnote 19: Cicero, _De Officiis_, i. 41.]