The Wealth of Nations by Part 4 Chapter 5 Page 82

established between the farmers and the corn merchants would be attended with effects equally beneficial to the farmers. They would be enabled to keep their whole capitals, and even more than their whole capitals, constantly employed in cultivation. In case of any of those accidents, to which no trade is more liable than theirs, they would find in their ordinary customer, the wealthy corn merchant, a person who had both an interest to support them, and the ability to do it, and they would not, as at present, be entirely dependent upon the forbearance of their landlord, or the mercy of his steward. Were it possible, as perhaps it is not, to establish this intercourse universally, and all at once, were it possible to turn all at once the whole farming stock of the kingdom to its proper business, the cultivation of land, withdrawing it from every other