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 way of elucidating a somewhat doubtful situation, the advertisers go on to say: "Typical men of brains are those who have dug large commercial enterprises out of a copper mine, or transformed buying and selling into an art. You must take a leaf from the experience of such men if you would hold positions of responsibility and power."

Just how the reference books—chill avenues of universal erudition—are going to give us control of a copper mine or of a department store is not made clear; but their vendors know that there is no use in offering anything less than wealth, or, as it is sometimes spelled, "success," as a return for the price of the volumes. And if a tasteful border design of fat money-bags scattering a cascade of dollars fails to quicken the sales, there is no tempting the heart of man. Our covetousness is as simple and as easily played upon as was the covetousness of the adventurers who went 245