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Rh man who "owns" the capital. A man who tilled the ground was already comparatively far up in civilization. He began with a pointed stick or the horn of an animal; by thousands of years of experiment and invention a spade was perfected. How can we measure the utility of a spade as compared with that of the pointed stick or the horn? That question would include the greater power of production of the spade and also the lessened pain and toil of the laborer. Now, if A owns a spade today, can he make B, who has none, pay him for the use of the spade an amount in any sense proportioned to the advantage of using a spade as compared with using a pointed stick? Certainly he cannot. Neither can A, if he keeps his spade, in any manner win by the use of it a superiority over his neighbors to be measured by the superiority of the spade to the stick. All but a small margin of the gains of civilization enters into a common stock which nobody can appropriate; it goes to make up a kind of industrial atmosphere around every one born into the society. Though a man may never have handled a plow, he gets his food under the conditions of a society which possesses plows; another may never have handled a pen or a type, but he gets his reading matter under the same conditions as a man who has pens and types. The same is true of every item of capital. Knowledge of the facts of history enables us to see when we look at a coin, a knife, a lead-pencil, a match, a book, a lock, a coat, the product of thousands of generations of tireless efforts to serve human needs more completely and easily with the materials offered by the earth. What we might call the metaphysical side of capital is its most important side in the history of civilization. Every bit of capital presents devices, methods, processes, which are of general application. If one of us