[2] The principle of Economic specialization could hardly be better illustrated than by the reply of an old-time compositor in a printing establishment who contemplated making a contract for the erection of a cottage home for himself and his family, when a friend suggested that he might save money by digging the cellar himself between working hours at the case. He replied: “I can dig a better cellar and more easily at the case with a composing-stick than on the spot with a pick and shovel.” By means of a vast variety of Economic specialties--such for illustration as farming, engineering, mining, lumbering and their respective and numerous subdivisions, through a vast variety of other Economic specialties, such as transporting and manufacturing and merchandizing, along with their respective and multitudinous subdivisions, all supplemented by such other Economic specialties as banking, teaching, preaching, adjudicating, writing, acting, and the fine arts--the necessaries for individual sustenance and the luxuries for individual enjoyment are produced and delivered in quantity, variety and perfection which, when calculated per capita, rise far above and extend far beyond all the possibilities of isolated individual life, far above and beyond the possibilities of community life in narrow environments. Were there but one individual to be considered, the natural advantages of Trade would seem as fanciful as a fairy story. Were there only a small group, the natural advantages of Trade, though manifest, would be too few and too primitive to disclose its wondrous powers of production. But when millions of individuals cooperate, some serving all and all serving each through the intricacies of worldwide Trade, mankind is welded into an Economic unity, a gigantic oneness--a larger human being, “the social man” as this social organism is sometimes not inaptly called--an organism composed of individuals who give it vitality and whom in consequence it serves as a beneficent giant might serve a cooperating pigmy. Involving the production of commodities by individual contributors of human service through an infinity of specializations, and their assignment to individuals by the intricate processes of service for service, Trade tends not only to increase the per capita supply of commodities, but also to effect their fair per capita assignment in proportions corresponding to the relative desirability of the numerous and various contributions of individual service to their production. In describing Trade as consisting essentially of interchanges of human services, we are of course to be understood as including not only such services as are embodied in tangible commodities, but also personal service. Nor does it make any Economic difference whether the personal service be of the “servant” type or of the “professional” type.