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| Libros | Libros |
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| Libros | Libros |
 In the progress of society, philosophy or speculation becomes, like every other employment, the principal or sole trade and occupation of a particular class of citizens. Like every other employment too, it is subdivided into a great number of different...  The Works of Adam Smith: The nature and causes of the wealth of nations - Página 18 por Adam Smith - 1812 Vista completa -
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