Mark Twain: He had discovered a great law of human action, without knowing it — namely, that in order to make a man or a boy covet a

He had discovered a great law of human action, without knowing it — namely, that — Mark Twain

He had discovered a great law of human action, without knowing it — namely, that in order to make a man or a boy covet a thing, it is only necessary to make the thing difficult to obtain.

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