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Poverty, though it no doubt discourages, does not always prevent, marriage. It seems even to be favourable to generation. A half-starved Highland woman frequently bears more than twenty children, while a pampered fine lady is often incapable of bearing any, and is generally exhausted by two or three. Barrenness, so frequent among women of fashion, is very rare among those of inferior station. Luxury, in the fair sex, while it inflames, perhaps,the passion for enjoyment, seems always to weaken, and frequently to destroy altogether, the powers of generation.

Adam Smith, in The Wealth of Nations

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