We have changed all that. Under the pretext of division of labour, we have sharply separated the brain worker from the manual worker. The masses of the workmen do not receive more scientific education than their grandfathers did; but they have been deprived of the education of even the small workshop, while their boys and girls are driven into a mine or a factory from the age of thirteen, and there they soon forget the little they may have learned at school. As to the men of science, they despise manual labour. How few of them would be able to make a telescope, or even a plainer instrument! Most of them are not capable of even designing a scientific instrument, and when they have given a vague suggestion to the instrument-maker, they leave it with him to invent the apparatus they need. Nay, they have raised the contempt of manual labour to the height of a theory. “The man of science,” they say, “must discover the laws of nature, the civil engineer must apply them, and the worker must execute in steel or wood, in iron or stone, the patterns devised by the engineer. He must work with machines invented for him, not by him. No matter if he does not understand them and cannot improve them: the scientific man and the scientific engineer will take care of the progress of science and industry.” 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 specialisation of labour, 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 complaints about the scarcity of precisely such men.