"The principal purposes to be answered by union are these the common defense of the members; the preservation of the public peace as well against internal convulsions as external attacks; the regulation of commerce with other nations and between the States; the superintendence of our intercourse, political and commercial, with foreign countries."

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Manufacturing establishments not only occasion a positive augmentation of the produce and revenue of the society . . . they contribute essentially to rendering them greater than they could possibly be, without such establishments. These circumstances are . . . greater scope for the diversity of talents and dispositions which discriminate men from each other.

— Alexander Hamilton