Page:Joseph Story, Commentaries on the Constitution of the United States (1st ed, 1833, vol II).djvu/516

 508 navigation and intercourse from its scope would be to entail upon us all the prominent defects of the confederation, and subject the Union to the ill-adjusted systems of rival states, and the oppressive preferences of foreign nations in favour of their own navigation.

§ 1059. The very exceptions found in the constitution demonstrate this; for it would be absurd, as well as useless, to except from a granted power that, which was not granted, or that, which the words did not comprehend. There are plain exceptions in the constitution from the power over navigation, and plain inhibitions to the exercise of that power in a particular way. Why should these be made, if the power itself was not understood to be granted? The clause already cited, that no preference shall be given by any regulation of commerce or revenue to the ports of one state over those of another, is of this nature. This clause cannot be understood, as applicable to those laws only, which;are passed for purposes of revenue, because it is expressly applied to commercial regulations; and the most obvious preference, which can be given to one port over another, relates to navigation. But the remaining part of the sentence directly points to navigation. "Nor shall vessels, bound to or from one state, be obliged to enter, clear, or pay duties in another." In short, our whole system for the encouragement of navigation in the coasting trade and fisheries, is exclusively founded upon this supposition. Yet no one has ever been bold enough to question the constitutionality of the laws, creating this system.