Our adversaries have adopted a system of tactics, which embarrasses us not a little. Do we prove our doctrine? They admit the truth of it in the most respectful manner. Do we attack their principles? They abandon them with the best possible grace. They only ask that our doctrine, which they acknowledge to be true, should be confined to books; and that their principles, which they allow to be false, should be established in practice. If we will give up to them the regulation of our tariffs, they will leave us triumphant in the domain of literature.