The Wealth of Nations by Part 5 Chapter 1 Page 107

it being applied to the only purpose to which a revenue levied in this manner ought ever to be applied. If the meanness and poverty of the trustees of turnpike roads render it sometimes difficult at present to oblige them to repair their wrong, their wealth and greatness would render it ten times more so in the case which is here supposed.

In France, the funds destined for the reparation of high roads are under the immediate direction of the executive power. Those funds consist partly in a certain number of days’ labour which the country people are in most parts of Europe obliged to give to the reparation of the highways, and partly in such a portion of the general revenue of the state as the king chooses to spare from his other expenses.

By the ancient law of France, as well as by