It is indeed clearly self-evident that on many accounts the man in business must give attention primarily to the service he is trying to render. The clerk in the store must devote himself mainly to his customers, to his merchandise, to his other duties, not to his salary. And so with the department manager, and so with the general manager, whether of a store, a railroad company, or other activity; the immediate daily problem for all lies in the rendering of a service, the producing of a commodity, or the doing of the thing for which the business enterprise exists. This concentration upon output is furthermore required by competition which whips the producer into line and often makes it a matter of business life and death that one should make progress in method and quality. That his shoes wear is a matter of pride to the shoe manufacturer. "Blank tires are good tires" is not to be regarded as merely a boastful advertisement. If it was it would not pay the advertising cost. Money-making as an aim thus becomes subsidiary to the characteristic activities of the enterprise, it is in a sense a by-product. But the money-making aim is there, although perhaps in the background. It is furnishing the power under which the enterprise operates. More than that, it is the gauge indicating the prosperity or lack of prosperity of the enterprise, its progress, its fitting in with the needs of life. In short, the money-making aim spurs on the business enterprise, just as the weekly or monthly pay spurs on the humble worker; but in each case the main attention is given, and necessarily given, to the work to be performed.