"WITH USURA
wool comes not to market
sheep bringeth no gain with usura
Usura is a murrain, usura
blunteth the needle in the maid’s hand
and stoppeth the spinner’s cunning. Pietro Lombardo
came not by usura
Duccio came not by usura"

Canto XLV by Ezra Pound

"N.B. Usury: A charge for the use of purchasing power, levied without regard to production; often without regard to the possibilities of production. (Hence the failure of the Medici bank.)"