indifferent about a stranger; a young and timid mother urged by the maternal instinct will, without a moment's hesitation, run the greatest danger for her own infant, but not for a mere fellow-creature. Nevertheless, many a civilized man, or even boy, who never before risked his life for another, but full of courage and sympathy, has disregarded the instinct of self-preservation, and plunged at once into a torrent to save a drowning man, though a stranger.... Such actions as the above appear to be the simple result of the greater strength of the social or maternal instincts than that of any other instinct or motive; for they are performed too instantaneously for reflection, or for pleasure or pain to be felt at the time; though, if prevented by any cause, distress or even misery might be felt.... I am aware that some persons maintain that actions performed impulsively, as in the above cases, do not come under the dominion of the moral sense, and cannot be called moral.... On the contrary, we all feel that an act cannot be considered as perfect or as performed in the most noble manner, unless it be done impulsively, without deliberation or effort, in the same manner as by a man in whom the requisite qualities are innate." Darwin defines the office of the moral sense as "telling us what to do,"[14] that of conscience,--which includes remorse, repentance, regret or shame, fear of the gods and of the disapprobation of men,--as reproving us if we disobey it;[15] conscience seems elsewhere to be defined as concerned with resolve to better future action; and in still another passage, the moral sense and conscience are identified. But again, in another paragraph, Darwin seems to ascribe remorse or regret, not to the baulking of an instinct, but to a _judgment_ of having been baulked: "A man cannot prevent past impressions often repassing through his mind; he will thus be driven to make a comparison between the impressions of past hunger, vengeance satisfied, or danger shunned at other men's cost, with the almost ever-present instinct of sympathy, and with his early knowledge of what others consider as praiseworthy or blamable. This knowledge cannot be banished from his mind, and from instinctive sympathy is esteemed of great moment. He will then feel as if he had been baulked in following a present instinct or habit, and this with all animals causes dissatisfaction, or even misery."[16] But, in spite of all indefiniteness in the use of terms and uncertainty as to the interrelations of "the social instincts," sympathy, reason, pleasure, and the moral sense, it is, after all, comparatively easy to gather, after a little deeper study, the general and more important features of Darwin's theory as to the origin of morality. We may state these as follows: The social instinct led men or their ape-like progenitors to society,[17] this instinct growing out of the parental or filial affections through habit and natural selection. Virtue is, at first,