By and large, it seems unavoidable that the pecuniary interests of the businessmen on the one hand and the material interests of the community on the other hand are diverging in a more and more pronounced degree, due to institutional circumstances over which no prompt control can be had without immediate violation of that scheme of personal rights in which the constitution of modern democratic society is grounded. The quandary in which these communities find themselves, as an outcome of their entrance upon "the simple and obvious system of Natural Liberty," is shown in a large and instructive way by what is called "labor trouble," and in a more recondite but no less convincing fashion by the fortunes of the individual workman under the modern system. The cost of production of a modern workman has constantly increased, with the advance of the industrial arts. The period of preparation, of education and training, necessary to turn out competent workmen, has been increasing; and the period of full workmanlike efficiency has been shortening, in those industries that employ the delicate and exacting processes of the modern technology. The shortening of this working-life of the workman is due both to a lengthening of the necessary period of preparation, and to the demand of these processes for so full a use of the workman's forces that even the beginning of senescence will count as a serious disability,--in many occupations as a fatal disability. It is also a well ascertained fact that effectual old age will be brought on at an earlier period by overwork; overwork shortens the working life-time of the workman. Thorough speeding-up ("Scientific Management"?) will unduly shorten this working life-time, and so it may, somewhat readily, result in an uneconomical consumption of the community's man-power, by consuming the workmen at a higher rate of speed, a higher pressure, with a more rapid rate of deterioration, than would give the largest net output of product per unit of man-power available, or per unit of cost of production of such man-power.