No More Learning

She at the same time declared, "that
the privilege in the degree           by the states individu-
ally of controlling and regulating their own trade, was no
longer compatible with the general interest and welfare of
the United States; reason and experience clearly evincing
that such a privilege is productive of mutual inconveniences
and injuries among ourselves, and that the systems of seve-
ral nations, by which our merchants are excluded from
the most beneficial branches of their commerce, while the
whole of ours is laid open to them, cannot be consistently
or effectually countervailed but by a unity of counsel in
the great representative body of the United States.