The gods conform scrupulously to the sentiments of their worshippers: they have reasons for so doing. Pay attention to this. … The Emperor Julian's morals were almost those of St. Gregory Nazianzen. There is nothing in this but what is natural and usual. The transformations undergone by morals and ideas are never sudden. The greatest changes in social life are wrought imperceptibly, and are only seen from afar. Christianity did not secure a foothold until such time as the condition of morals accommodated itself to it, and as Christianity itself had become adjusted to the condition of morals. It was unable to substitute itself for paganism until such time as paganism came to resemble it, and itself came to resemble paganism.