The Wealth of Nations by Part 2 Chapter 2 Page 128

But allowing the colony security to be perfectly good, a hundred pounds payable fifteen years hence, for example, in a country where interest at six per cent, is worth little more than forty pounds ready money. To oblige a creditor, therefore, to accept of this as full payment for a debt of a hundred pounds actually paid down in ready money was an act of such violent injustice as has scarce, perhaps, been attempted by the government of any other country which pretended to be free. It bears the evident marks of having originally been, what the honest and downright Doctor Douglas assures us it was, a scheme of fraudulent debtors to cheat their creditors. The government of Pennsylvania, indeed, pretended, upon their first emission of paper money, in 1722, to render their paper of equal value with gold and silver by enacting penalties against all those who made