The Wealth of Nations by Part 2 Chapter 3 Page 11

either productive or unproductive hands. They seem, however, to have some predilection for the latter. The expense of a great lord feeds generally more idle than industrious people. The rich merchant, though with his capital he maintains industrious people only, yet by his expense, that is, by the employment of his revenue, he feeds commonly the very same sort as the great lord.

The proportion, therefore, between the productive and unproductive hands, depends very much in every country upon the proportion between that part of the annual produce, which, as soon as it comes either from the ground or from the hands of the productive labourers, is destined for replacing a capital, and that which is destined for constituting a revenue, either as rent or as profit.

This proportion is very