“What I mean—what we mean by it is—it’s like credit,” I said, suddenly thinking of my grandfather. “Gifts, and thanks—we’ll accept from someone what they can give then, and make return to them when it’s wanted, if we can. And there are some cheats, and some debts aren’t paid, but others are paid with interest to make up for it, and we can all do the more for not having to pay as we go.”