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THE STORY OF MANKIND
But whereas we can all afford a pair of good legs and a good strong fist, a railroad train and a steam hammer and a cotton factory are very expensive pieces of machinery and they are not owned by a single man, but usually by a company of people who all contribute a certain sum and then divide the profits of their railroad or cotton mill according to the amount of money which they have invested.
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MAN POWER AND MACHINE POWER
Therefore, when machines had been improved until they were really practicable and profitable, the builders of those