The Wealth of Nations by Part 3 Chapter 3 Page 31

generally been posterior to those which were the offspring of foreign commerce. England was noted for the manufacture of fine cloths made of Spanish wool more than a century before any of those which now flourish in the places above mentioned were fit for foreign sale. The extension and improvement of these last could not take place but in consequence of the extension and improvement of agriculture the last and greatest effect of foreign commerce, and of the manufactures immediately introduced by it, and which I shall now proceed to explain.