The superiority antecedently enjoyed by nations who have preoccupied and perfected a branch of industry, constitutes a more formidable obstacle than either of those which have been mentioned, to the introduction of the same branch into a country in which it did not before exist. To maintain, between the recent establishments of one country, and the long-matured establishments of another country, a competition upon equal terms, both as to quality and price, is, in most cases, impracticable. The disparity, in the one, or in the other, or in both, must necessarily be so considerable, as to forbid a successful rivalship, without the extraordinary aid and protection of government.
--A. Hamilton
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America Was Founded as a Protectionist Nation