"We believe … in obedience to, and respect for the judicial department of government. We think its decisions on Constitutional questions, when fully settled, should control, not only the particular cases decided, but the general policy of the country, subject to be disturbed only by amendments of the Constitution as provided in that instrument itself. More than this would be revolution. But we think the Dred Scott decision is erroneous. … If this important decision had been made by the unanimous concurrence of the judges, and without any apparent partisan bias, and in accordance with legal public expectation, and with the steady practice of the departments throughout our history, and had been in no part, based on assumed historical facts which are not really true; or, if wanting in some of these, it had been before the court more than once, and had there been affirmed and re-affirmed through a course of years, it then might be, perhaps would be, factious, nay, even revolutionary, to not acquiesce in it as a precedent."