Another great contribution to civilization made by the United States is the diffusion of material well-being among the population. No country in the world approaches the United States in this respect. It is seen in that diffused elementary education which implants for life a habit of reading, and in the habitual optimism which characterizes the common people. It is seen in the housing of the people and of their domestic animals, in the comparative costliness of their food, clothing, and household furniture, in their implements, vehicles, and means of transportation, and in the substitution, on a prodigious scale, of the work of machinery for the work of men's hands. This last item in American well-being is quite as striking in agriculture, mining, and fishing, as it is in manufactures. The social effects of the manufacture of power, and of the discovery of means of putting that power just where it is wanted, have been more striking in the United States than anywhere else. Manufactured and distributed power needs intelligence to direct it: the bicycle is a blind horse, and must be steered at every instant; somebody must show a steam-drill where to strike and how deep to go. So far as men and women can substitute for the direct expenditure of muscular strength the more intelligent effort of designing, tending, and guiding machines, they win promotion in the scale of being, and make their lives more interesting as well as more productive. It is in the invention of machinery for producing and distributing power, and at once economizing and elevating human labor, that American ingenuity has been most conspicuously manifested. The high price of labor in a sparsely-settled country has had something to do with this striking result; but the genius of the people and of their government has had much more to do with it. As proof of the general proposition, it suffices merely to mention the telegraph and telephone, the sewing-machine, the cotton-gin, the mower, reaper, and threshing-machine, the dish-washing machine, the river steamboat, the sleeping-car, the boot and shoe machinery, and the watch machinery. The ultimate effects of these and kindred inventions are quite as much intellectual as physical, and they are developing and increasing with a portentous rapidity which sometimes suggests a doubt whether the bodily forces of men and women are adequate to resist the new mental strains brought upon them. However this may prove to be in the future, the clear result in the present is an unexampled diffusion of well-being in the United States.