An Inquiry into the Nature and Causes of the Wealth of Nations

by Adam Smith

But though the wear and tear of a free servant be equally at the expense of his master, it generally costs him much less than that of a slave. The fund destined for replacing or repairing, if I may say so, the wear and tear of the slave, is commonly managed by a negligent master or careless overseer. That destined for performing the same office with regard to the freeman is managed by the freeman himself. The disorders which generally prevail in the economy of the rich, naturally introduce themselves into the management of the former; the strict frugality and parsimonious attention of the poor as naturally establish themselves in that of the latter. Under such different management, the same purpose must require very different degrees of expense to execute it. It appears, accordingly, from the experience of all ages and nations, I believe, that the work done by freemen comes cheaper in the end than that performed by slaves. It is found to do so even at Boston, New-York, and Philadelphia, where the wages of common labour are so very high.