“The difference between the earnings of a common labourer and those of a well employed lawyer or physician, is evidently much greater than that between the ordinary profits in any two different branches of trade. The apparent difference, besides, in the profits of different trades, is generally a deception arising from our not always distinguishing what ought to be considered as wages, from what ought to be considered as profit.” Skin In The GameNormal DistributionLimited Liability Book:An Inquiry into the Nature and Cause of the Wealth of Nation vol II VIIth edition 1793 [Leather Bound] Source: An Inquiry into the Nature and Cause of the Wealth of Nation vol II VIIth edition 1793 [Leather Bound]