The Wealth of Nations by Part 2 Chapter 2 Page 112

the paper money, would occasion a much greater confusion in a country where the whole circulation was carried on by paper, than in one where the greater part of it was carried on by gold and silver. The usual instrument of commerce having lost its value, no exchanges could be made but either by barter or upon credit. All taxes having been usually paid in paper money, the prince would not have wherewithal either to pay his troops, or to furnish his magazines; and the state of the country would be much more irretrievable than if the greater part of its circulation had consisted in gold and silver.

A prince, anxious to maintain his dominions at all times in the state in which he can most easily defend them, ought, upon this account, to guard, not only against that excessive multiplication of paper money which ruins the very