It is the interest of such a sovereign, therefore, to open the most extensive market for the produce of his country, to allow the most perfect freedom of commerce, in order to increase as much as possible the number and competition of buyers; and upon this account to abolish, not only all monopolies, but all restraints upon the transportation of the home produce from one part of the country to mother, upon its exportation to foreign countries, or upon the importation of goods of any kind for which it can be exchanged.