The Wealth of Nations by Part 1 Chapter 11 Page 57

The wool of England, which in old times could neither be consumed nor wrought up at home, found a market in the then wealthier and more industrious country of Flanders, and its price afforded something to the rent of the land which produced it.

In countries not better cultivated than England was then, or than the highlands of Scotland are now, and which had no foreign commerce, the materials of clothing would evidently be so superabundant that a great part of them would be thrown away as useless, and no part could afford any rent to the landlord.

The materials of lodging cannot always be transported to so great a distance as those of clothing, and do not so readily become an object of foreign commerce. When they are superabundant in the country which produces them, it frequently happens,