Up until the late unpleasantness of the Civil war, then, the right of secession was more or less taken for granted in many quarters, and there has never been any amendment or even a Supreme Court decision saying it's improper. - Samual Francis, Secession May Be Legal But Not Expedient, Conservative Chronicles
If there be any among us who wish to dissolve the Union or to change its republican form, let them stand undisturbed, as monuments of the safety with which error of opinion may be tolerated where reason is left free to combat it.