It may be objected that nevertheless there is a class of men who belong to none of the above three divisions. When young they have been manual workers, and some of them continue to be; but, owing to some happy circumstances, they have succeeded in acquiring some scientific knowledge, and thus they have combined science with handicraft. Surely there are such men; happily enough there is a nucleus of men who have escaped the so-much-advocated specialization of labor, and it is precisely to them that industry owes its chief recent inventions. But in old Europe at least, they are the exceptions; they are the irregulars--the Cossacks who have broken the ranks and pierced the screens so carefully erected between the classes. And they are so few, in comparison with the ever-growing requirements of industry--and of science as well, as I am about to prove--that all over the world we hear complaint about the scarcity of precisely such men. What is the meaning, in fact, of the outcry for technical education which has been raised at one and the same time in England, in France, in Germany, in the States, and in Russia, if it does not express a general dissatisfaction with the present division into scientists, scientific engineers, and workers? Listen to those who know industry, and you will see that the substance of their complaint is this: "The worker whose task has been specialized by the permanent division of labor has lost the intellectual interest in his labor, and it is especially so in the great industries: he has lost his inventive powers. Formerly, he invented very much. Manual workers--not men of science nor trained engineers--have invented, or brought to perfection, the prime motors and all that mass of machinery which has revolutionized industry for the last hundred years. But since the great factory has been enthroned, the worker, depressed by the monotony of his work, invents no more. What can a weaver invent who merely supervises four looms, without knowing anything either about their complicated movements or how the machines grew to be what they are? What can a man invent who is condemned for life to bind together the ends of two threads with the greatest celerity, and knows nothing beyond making a knot?