The Wealth of Nations by Part 5 Chapter 1 Page 264

of that expense. It is seldom from the want of masters, but from the negligence and incapacity of the masters who are to be had, and from the difficulty, or rather from the impossibility, which there is in the present state of things of finding any better. The employments, too, in which people of some rank or fortune spend the greater part of their lives are not, like those of the common people, simple and uniform. They are almost all of them extremely complicated, and such as exercise the head more than the hands. The understandings of those who are engaged in such employments can seldom grow torpid for want of exercise.

The employments of people of some rank and fortune, besides, are seldom such as harass them from morning to night. They generally have a good deal of leisure, during which they may perfect themselves in