The remainder of Part II. of the "Principles of Ethics" is occupied with data cited to show that the amount of internal aggression, of revenge and robbery, is greater among peoples much occupied with external aggression, and that these decrease, while justice, generosity (which Mr. Spencer defines as having a double root, in the philoprogenitive instinct and the relatively modern feeling of sympathy), humanity (including kindness, pity, mercy), filial obedience, and industry, increase as more peaceful habits are reached. A greater veracity is also indirectly the result of this evolution, since a coercive internal structure of society is connected with external enmity, and such coercive structure is unfavorable to veracity. Chastity also increases with the social evolution, though it does not necessarily characterize societies of the non-militant type. Its increase is connected with the growth of the higher moral and aesthetic feelings; romantic love plays a predominant part in our art. Intemperance, as causing, indirectly, social evil by a lowering of social efficiency, must, in like manner, decrease with social advancement. In summing up his inductions, Spencer says: "Though, as shown in my first work, 'Social Statics,' I once espoused the doctrine of the intuitive moralists,... yet it has gradually become clear to me that the qualifications required practically obliterate the doctrine as enunciated by them. It has become clear to me that if, among ourselves, the current belief is that a man who robs and does not repent will be eternally damned, while an accepted proverb among the Bilochs is, that 'God will not favor a man who does not steal and rob'; it is impossible to hold that men have in common an innate perception of right and wrong. "But now, while we are shown that the moral sense doctrine in its original form is not true, we are also shown that it adumbrates a truth, and a much higher truth. For the facts cited... unite in proving that the sentiments and ideas current in each society become adjusted to the kinds of activity predominating in it.... If the life of internal amity continues unbroken from generation to generation, there must result not only the appropriate code, but the appropriate emotional nature.... Men so conditioned will acquire, to the degree needful for complete guidance, that innate conscience which intuitive moralists erroneously suppose to be possessed by mankind at large. There needs but a continuance of absolute peace externally, and a rigorous insistance on non-aggression internally, to insure the moulding of men into a form naturally characterized by all the virtues." Complete exemption from war has already been attained by some few isolated peoples. "May we not reasonably infer that the state reached by these small uncultured tribes may be reached by the great cultured nations, when the life of internal amity shall be unqualified by the life of external enmity?"