Page:Joseph Story, Commentaries on the Constitution of the United States (1st ed, 1833, vol II).djvu/416

 408 a large naval force, greatly endanger, if it did not wholly cut off our supplies from this source. And if this were the sole reliance of the national government, a naval warfare upon our commerce would, on this very account, be at once the most successful, and the most irresistible means of subduing us, or compelling us to sue for peace. What could Great Britain, or France do in a naval war, if they were compelled to rely on commerce alone, as a resource for taxation to raise armies, or maintain navies? What could America do, in a contest with a rival power, whose navy possessed a superiority, sufficient to blockade all her principal ports? And, independent of any such exigencies, the history of the world shows, that nothing is more fluctuating and capricious than trade. The proudest commercial nations in one age have sunk down to comparative insignificance in another. Look at Venice, and Genoa, and the Hanse Towns, and Holland, and Portugal, and Spain! What is their present, commercial importance; compared with its glory, and success, in past times? Could either of them now safely rely on imposts, as an exclusive source of revenue?

§ 935. There is another, very important view of this