In considering human affairs historically it is very necessary to bear in mind that men ordinarily have no opinions. If by "opinions" we mean well considered judgments, founded upon an orderly reasoning from accepted premises, then opinions are the very rarest of human possessions. If we are told that a particular person was born and bred in Spain, we know without further inquiry what his religious convictions are. If we learn that he is a Turk we perfectly know his so-called opinions upon the subject of matrimony. We take for granted the views of the Puritans' sons and daughters concerning religion. We know, without asking, what the "opinions" of any American are with respect to the Declaration of Independence. We know that, with the exception of a very few men, all the people of the South were firmly convinced that the cause of the South in the Confederate war was a just one; that the National Government had no conceivable right to coerce recalcitrant states; that secession was an absolute right of the states, and all the rest of it. On the other hand we know that the Northern boy who had declaimed Webster's reply to Hayne was fully imbued with the conviction that "Liberty and Union" were "now and forever, one and inseparable."
In other words, with here and there an exception, men's opinions are determined by geography, tradition, circumstance, self-interest and the like.
Thus when New England's chief interest was maritime and commercial, Daniel Webster was the most radical of free-traders. He held up to ridicule and contumely Henry Clay's protective "American system" and showed conclusively that nothing in the world could be more utterly un-American. But a few years later, when New England's interests were centered in manufactures, Daniel Webster's opinions became those of an extreme protectionist. In the same way he opposed a national bank so long as New England disliked that institution and favored it the moment New England desired its continuance. In like manner John C. Calhoun began by clamoring for the tariff protection of Southern industries and developed into the chief apostle of nullification as a means of escaping protective tariffs. Similarly Clay began by making so absolutely conclusive an argument against a national bank that Andrew Jackson afterwards quoted it as the best possible plea he could offer in support of his warfare upon that institution after Clay had become its chief apostle.