Then the energy of the society may be diverted from its interests. Such a drift of the mores is exactly analogous to a vice of an individual, i.e. energy is expended on acts which are contrary to welfare. The result is a confusion of all the functions of the society, and a falseness in all its mores. Any of the aberrations which have been mentioned will produce evil mores, that is, mores which are not adapted to welfare, so that a group may fall into vicious mores just as an individual falls into vicious habits. +104. Illustrations.+ This was well illustrated at Byzantium. The development of courtesans and prostitutes into a great and flourishing institution; the political rule, by palace intrigues, of favorites, women, and eunuchs; the decisive interference of royal guards; the vices of public amusements and baths; the miseries and calamities of talented men and the consequent elimination of that class from the society; the sycophancy of clients; the servitude of peasants and artisans, with economic exhaustion as a consequence; demonism, fanaticism, and superstition in religion, combined with extravagant controversies over pedantic trifles,--such are some of the phenomena of mores disordered by divorce from sober interests, and complicated by arbitrary dogmas of politics and religion, not forgetting the brutal and ignorant measures of selfish rulers. In the Merovingian kingdom barbaric and corrupt Roman mores were intermingled in a period of turmoil. In the Renaissance in Italy all the taboos were broken down, or had lost their sanctions, and vice and crime ran riot through social disorder. As to the degeneracy of mores, we meet with a current opinion that in time the mores tend to "run down," by the side of another current opinion that there is, in time, a tendency of the mores to become more refined and purer. If the life conditions do not change, there is no reason at all why the mores should change. Some barbarian peoples have brought their mores into true adjustment to their life conditions, and have gone on for centuries without change. What is true, however, is that there are periods of social advance and periods of social decline, that is, advance or decline in economic power, material prosperity, and group strength for war. In either case all the mores fall into a character, temper, and spirit which conform to the situation. The early centuries of the Christian era were a period of decline. Tertullian[121] has a passage in which he describes in enthusiastic terms the prosperity and progress of his time (end of the second century). He did not perceive that society was in a conjuncture of decline. Many, however, from the time of Augustus saw evil coming. The splendors of the empire did not delude them. Tacitus feared evil from the Germans; others from the Parthians.[122] The population of the Roman empire felt its inferiority to its ancestors. One thing after another gave way. Nothing could serve