Finally, it may be remarked that a rational egoism, so far from implying a more egoistic human nature, is consistent with a human nature that is less egoistic. For excesses in one direction do not prevent excesses in the opposite direction; but rather, extreme deviations from the mean on one side lead to extreme deviations on the other side. A society in which the most exalted principles of self-sacrifice for the benefit of neighbors are enunciated, may be a society in which unscrupulous sacrifice of alien fellow-creatures is not only tolerated but applauded. Along with professed anxiety to spread these exalted principles among heathens, there may go the deliberate fastening of a quarrel upon them with a view to annexing their territory. Men who every Sunday have listened approvingly to injunctions carrying the regard for other men to an impracticable extent, may yet hire themselves out to slay, at the word of command, any people in any part of the world, utterly indifferent to the right or wrong of the matter fought about. And as in these cases transcendent altruism in theory co-exists with brutal egoism in practice, so conversely, a more qualified altruism may have for its concomitant a greatly moderated egoism. For asserting the due claims of self, is, by implication, drawing a limit beyond which the claims are undue; and is, by consequence, bringing into greater clearness the claims of others. CHAPTER XII. ALTRUISM VERSUS EGOISM. § 75. If we define altruism as being all action which, in the normal course of things, benefits others instead of benefiting self, then, from the dawn of life, altruism has been no less essential than egoism. Though, primarily, it is dependent on egoism, yet, secondarily, egoism is dependent on it. Under altruism, in this comprehensive sense, I take in the acts by which offspring are preserved and the species maintained. Moreover, among these acts must be included not such only as are accompanied by consciousness but also such as conduce to the welfare of offspring without mental representation of the welfare--acts of automatic altruism as we may call them. Nor must there be left out those lowest altruistic acts which subserve race-maintenance without implying even automatic nervous processes--acts not in the remotest sense psychical, but in a literal sense physical. Whatever action, unconscious or conscious, involves expenditure of individual life to the end of increasing life in other individuals, is unquestionably altruistic in a sense, if not in the usual sense, and it is here needful to understand it in this sense that we may see how conscious altruism grows out of unconscious altruism.