In free trade, the merchant is the master and producer of the slave. Protection is only the law of nature, the law of self-preservation, self-development, the guarantee of the highest and best destiny of the human race. [It is said] that protection is immoral. . . . Why, if protection takes hold and increases 63,000,000 [american population] people, the influence of these 63,000,000 people increases the rest of the world. We cannot take a step on the road to progress without benefiting humanity everywhere. Well, they say, “Buy where you can buy the cheapest ones…. This of course applies to work and everything else. Let me give you a maxim that is a thousand times better, and that is the limit of protection: “Buy where you can pay most easily.” And this earth stain is where work receives its greatest rewards.  The Ottoman Empire had until the 18th century a liberal policy of free trade, originating from the capitulations of the Ottoman Empire, which dated back to the first trade agreements signed with France in 1536 and continued in 1673 with capitulations, 1740, thus reducing tariffs on imports and exports to only 3% and in 1790. The Ottoman free trade policy has been welcomed by British economists, who engaged in his Dictionary of Commerce (1834) for free trade as J.
R. McCulloch, but criticized by British politicians who opposed free trade, such as Prime Minister Benjamin Disraeli, who cited the Ottoman Empire as “an example of unbridled competition violation” in the debate on corn legislation of 1846 , arguing that by 1812 he had destroyed “some of the best manufacturers in the world.”  In Kicking Away the Ladder, development economist Ha-Joon Chang reviews the history of free trade policy and economic growth and finds that many of today`s industrialized countries have had considerable trade barriers throughout their history. The United States and Great Britain, sometimes regarded as the homeland of free trade policy, have had varying degrees of protectionism. Britain abolished maize laws that restrict grain imports in 1846 in response to domestic pressure and reduced protectionism for production only in the mid-19th century, when its technological advantage was at its peak, but tariffs on manufactured goods rose to 23% in 1950. Until the 1950s, the United States held weighted average tariffs on manufactured goods of about 40-50%, supplemented by the natural protectionism of high transportation costs in the 19th century.  The most consistent practitioners of free trade were Switzerland, the Netherlands and, to a lesser extent, Belgium.  Chang describes the export-oriented industrialization policy of the four Asian tigers as “much more sophisticated and finer than their historical counterparts.”  Some opponents of free trade support free trade theory, but oppose free trade agreements as applied. Some opponents of NAFTA see the agreement as a significant prejudice to the people in the public domain, but some arguments are in fact opposed to the specifics of state-run trade and not to free trade itself.
For example, it is argued that it would be wrong to leave subsidized U.S. corn in Mexico under NAFTA at prices well below production costs (dumping), as they have a ruinous effect on Mexican farmers. Indeed, such subsidies run counter to the theory of free trade, so that this argument does not run counter to the principle of free trade, but to its selective implementation. [Citation required] The whole doctrine of mercantilism would be attacked by the writings of Adam Smith and David Ricardo, both of whom stressed the desire for imports and stated that exports are only the necessary cost of their acquisition. Their theories have become increasingly influential and have helped to create a trend towards trade liberalization, a trend that Britain should follow.