In the third place, the ability of the State to operate a few enterprises, does not prove that it could repeat the performance with an equal degree of success in all industries. I can drive two horses, but I could not drive twenty-two. No matter how scientific the organisation and departmentalisation of industries under Socialism, the final control of and responsibility for all of them would rest with one organ, one authority, namely, the city in municipal industries, and the nation in industries having national scope. This would prove too great a task, too heavy a burden, for any body of officials, for any group of human beings. Finally, it must be kept in mind that the publicly operated utilities are subject continuously to the indirect competition of private management. By far the greater part of industry is now under private control, which sets the pace for efficient operation in a hundred particulars. As a consequence, comparisons are steadily provoked between public and private management, and the former is subject to constant criticism. The managers of the State concerns are stimulated and practically compelled to emulate the success of private management. This factor is probably more effective in securing efficiency in public industries than all other causes put together. In the words of Professor Skelton: "A limited degree of public ownership succeeds simply because it is a limited degree, succeeds because private industry, in individual forms or in the socialised joint stock form, dominates the field as a whole. It is private industry that provides the capital, private industry that trains the men and tries out the methods, private industry that sets the pace, and--not the least of its services--private industry that provides the ever-possible outlet of escape."[131] The Socialist expectation that altruistic sentiments and public honour would induce all industrial leaders and all ordinary workers to exert themselves as effectively as they now do for the sake of money, is based upon the very shallow fallacy that what is true of a few men may very readily become true of all men. There are, indeed, persons in every walk of life who work faithfully under the influence of the higher motives, but they are and always have been the exceptions in their respective classes. The great majority have been affected only feebly, intermittently, and on the whole ineffectively by either love of their kind or the hope of public approval.