The Wealth of Nations by Part 2 Chapter 2 Page 98

office for the whole country. Those who wanted to borrow must have applied to this bank instead of applying to the private persons who had lent it their money. But a bank which lends money perhaps to five hundred different people, the greater part of whom its directors can know very little about, is not likely to be more judicious in the choice of its debtors than a private person who lends out his money among a few people whom he knows, and in whose sober and frugal conduct he thinks he has good reason to confide.

The debtors of such a bank as that whose conduct I have been giving some account of were likely, the greater part of them, to be chimerical projectors, the drawers and re-drawers of circulating bills of exchange, who would employ the money in extravagant undertakings, which, with all the assistance that could