There can be no such thing as usury: for what rate of interest is there that can naturally be more proper than another? what natural fixed price can there be for the use of money more than for the use of any other thing? Were it not then for custom, usury, considered in a moral view, would not then so much as admit of a definition…. Putting money out at interest, is exchanging present money for future: but why a policy, which, as applied to exchanges in general, would be generally deemed absurd and mischievous, should be deemed necessary in the instance of this particular kind of exchange, mankind are as yet to learn.