It is obvious that a nation possessing an extensive territory, enriched with varied resources and a numerous population, uniting agriculture and manufactures with an external and internal trade, is beyond comparison more civilized, politically more developed and more powerful than any merely agricultural country. But manufactures constitute the basis of external and internal trade, of navigation, of an improved agriculture, consequently of civilization and political power; and should any nation succeed in monopolizing all the manufacturing activity of the world, and in checking all other nations in their economical development by reducing them to the mere production of agricultural commodities and raw materials, and other indispensable local productions, it would undoubtedly attain to very wide, if not to universal dominion.
A nation that greatly values its independence and its safety, must make a vigorous effort to elevate itself as fast as possible, from an inferior to a higher state of civilization, uniting and perfecting as quickly as possible, its own agriculture, manufactures, navigation, and commerce.
The transition from the savage to the pastoral, and from the pastoral to the agricultural state, as well as the first progress in agriculture, is very efficiently promoted by free intercourse among manufacturing and commercial nations.
The elevation of an agricultural people to the condition of countries at once agricultural, manufacturing, and commercial, can only be accomplished under the law of free trade, when the various nations engaged at the time in manufacturing industry shall be in the same degree of progress and civilization; when they shall place no obstacle in the way of the economical development of each other, and not impede their respective progress by war or adverse commercial legislation.
But some of them, favored by circumstances, having distanced others in manufactures, commerce, and navigation, and having early perceived that this advanced state was the surest mode of acquiring and keeping political supremacy, have adopted and still persevere in a policy so well adapted to give them the monopoly of manufactures, of industry and of commerce, and to impede the progress of less advanced nations or those in a lower degree of culture. The measures enforced by such nations, taken as a whole, the prohibitions, the duties on imports, the maritime restrictions, premiums upon exports, &c., are called the protective system.