"Banking!" Mathis was saying. "What is it but usury? Bankers are money lenders, usurers. But because they lend other people's money or money that does not exist, they have a pretty name. They are still usurers. Once, usury was a mortal sin and an abomination, and to be a usurer was to be a criminal for whom there was a prison cell. To-day the usurers are the gods of the earth and the only mortal sin is to be poor."