This attitude is reënforced by the views about good luck and bad luck. Primitive man--and civilized man--is not ruled by a purely rational theory of success and failure. "One might use the best known means with the greatest care, yet fail of the result. On the other hand, one might get a great result with no effort at all. One might also incur a calamity without any fault of his own."[24] "Grimm gives more than a thousand ancient German apothegms, dicta, and proverbs about 'luck.'"[25] Both good and bad fortune are attributed to the unseen powers, hence a case of bad luck is not thought of as a mere chance. If the ship that sailed Friday meets a storm, or one of thirteen falls sick, the inference is that this is sure to happen again. And at this point the conception of the group welfare as bound up with the acts of every member, comes in to make individual conformity a matter for group concern--to make conduct a matter of mores and not merely a private affair. One most important, if not the most important, object of early legislation was the enforcement of lucky rites to prevent the individual from doing what might bring ill luck on all the tribe. For the conception always was that the ill luck does not attach itself simply to the doer, but may fall upon any member of the group. "The act of one member is conceived to make all the tribe impious, to offend its particular god, to expose all the tribe to penalties from heaven. When the street statues of Hermes were mutilated, all the Athenians were frightened and furious; they thought they should all be ruined because some one had mutilated a god's image and so offended him."[26] "The children were reproved for cutting and burning embers, on the ground that this might be the cause for the accidental cutting of some member of the family."[27] In the third place, besides these sources of custom, in the usefulness or lucky character of certain acts, there is also the more immediate reaction of individuals or groups to certain ways of acting according "as things jump with the feelings or displease them."[28] An act of daring is applauded, whether useful or not. The individual judgment is caught up, repeated, and plays its part in the formation of group opinion. "Individual impulse and social tradition are thus the two poles between which we move." Or there may even be a more conscious discussion analogous to the action of legislatures or philosophic discussion. The old men among the Australians deliberate carefully as to each step of the initiation ceremonies. They make customs to be handed down. § 2. MEANS OF ENFORCING CUSTOMS The most general means for enforcing customs are public opinion, taboos, ritual or ceremony, and physical force.