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The liberal reward of labour, therefore, as it is the affect of increasing wealth, so it is the cause of increasing population. To complain of it, is to lament over the necessary effect and cause of the greatest public prosperity.

Adam Smith (2010). “An Inquiry Into the Nature and Causes of the Wealth of Nations”, p.85, Cosimo, Inc.
The liberal reward of labour, therefore, as it is the affect of increasing wealth, so it is the cause of increasing population. To complain of it, is to lament over the necessary effect and cause of the greatest public