man, debtor, creditor, employer, and employee, in their visible operation. In a highly organized society as, for instance, in a big city, those same relations have all become automatic and impersonal. They have escaped from control; they are regulated by assumptions and understandings that every one is to do so and so; that certain uniform and constant motives, aims, and desires will present themselves as long as human society endures; and that men will, therefore, continue to exert themselves in a certain manner for the satisfaction of their wants. This is what we mean by natural law, and by the field of a science of society. If any one will look over his dinner table the next time he sits down to dinner, he can see the proofs that thousands of producers, transporters, merchants, bankers, policemen, and mechanics, through the whole organization of society and all over the globe, have been at work for the last year or more to put that dinner within his reach, on the assumption that he, too, would do his work in the organization, whatever it is, and be prepared to pay for the dinner when it reaches him. All these thousands and millions of people, therefore, have co-operated with each other for the common good of all, without acquaintance or conventional agreement, and without any personal interest in each other, under the play of forces which lie in human nature and in the conditions of human existence on this earth.
Now, the organs of society do not impinge upon each other with hard and grating friction, like blocks of granite wedged together. If they did the case would be easier, for then we should have only a mechanical contact, and the relations would be of a simple order. Neither are the relations those of an orchestra, which produces harmony by voluntary co-operation under training,
