The formulation of sentiment about an act depends also on the repetition of the act. The act is more irritating, and the irritation more widespread, with each repetition, and there is an increase of the penalty for a second offense, and death for a slight offense when frequently repeated: in the Netherlands stealing of linen left in the fields to be bleached led to the death penalty for stealing a pocket handkerchief. And with increasing definiteness of authority there follows increasing definiteness of punishment; and when finally the habit becomes fixed, conformity with it becomes a paramount consideration, and a deed is no longer viewed with reference to its intrinsic import so much as to its conformity or nonconformity with a standard in the law: summum jus, summa injuria.
Morality, involving the modification of the conduct of the individual in view of the presence of others, is already highly developed in the tribal stage, since the exigencies of life have demanded the most rigorous regulation of behavior in order to secure the organization and the prowess essential to success against all comers. But the tribe is a unit in hostile coexistence with other similar units, and its morality stops within itself, and applies in no sense to strangers and outsiders. The North American Indians were theoretically at war with all with whom they had not concluded a treaty of peace. In Africa the traveler is safe and at an advantage if by a fiction (the rite of blood-brotherhood) he is made a member of the group; and similarly in Arabia and elsewhere. The old epics and histories are full of the praises of the man who is gentle within the group and furious without it. The earliest commandments doubtless did not originally apply to mankind at large. They meant, “Thou shalt