The Wealth of Nations by Part 2 Chapter 2 Page 97

loss upon the balance of their accounts. The project of replenishing their coffers in this manner may be compared to that of a man who had a water-pond from which a stream was continually running out, and into which no stream was continually running, but who proposed to keep it always equally full by employing a number of people to go continually with buckets to a well at some miles distance in order to bring water to replenish it.

But though this operation had proved not only practicable but profitable to the bank as a mercantile company, yet the country could have derived no benefit from it; but, on the contrary, must have suffered a very considerable loss by it. This operation could not augment in the smallest degree the quantity of money to be lent. It could only have erected this bank into a sort of general loan