The Wealth of Nations by Part 5 Chapter 1 Page 106

than that wear and tear, and contributes to the supply of some other exigency of the state. But as the turnpike toll raises the price of goods in proportion to their weight, and not to their value, it is chiefly paid by the consumers of coarse and bulky, not by those of precious and light, commodities. Whatever exigency of the state therefore this tax might be intended to supply, that exigency would be chiefly supplied at the expense of the poor, not the rich; at the expense of those who are least able to supply it, not of those who are most able.

Thirdly, if government should at any time neglect the reparation of the high roads, it would be still more difficult than it is at present to compel the proper application of any part of the turnpike tolls. A large revenue might thus be levied upon the people without any part of