The extreme solicitude for the preservation of the Union, at all times manifested by him, shows not only the opinion he entertained of its importance, but his clear perception of those causes which were likely to spring up to endanger it, and which, if once they should overthrow the present system, would leave little hope of any future beneficial reunion. Of all the presumptions indulged by presumptuous man, that is one of the rashest which looks for repeated and favorable opportunities for the deliberate establishment of a united government over distinct and widely extended communities. Such a thing has happened once in human affairs, and but once; the event stands out as a prominent exception to all ordinary history; and unless we suppose ourselves running into an age of miracles, we may not expect its repetition. Washington, therefore, could regard, and did regard, nothing as of paramount political interest but the integrity of the Union itself. With a united government, well administered, he saw that we had nothing to fear; and without it, nothing to hope. The sentiment is just, and its momentous truth should solemnly impress the whole country. If we might regard our country as personated in the spirit of Washington, if we might consider him as representing her, in her past renown, her present prosperity, and her future career, and as in that character demanding of us all to account for our conduct, as political men or as private citizens, how should he answer him who has ventured to talk of disunion and dismemberment? Or how should he answer him who dwells perpetually on local interests, and fans every kindling flame of local prejudice? How should he answer him who would array State against State, interest against interest, and party against party, careless of the continuance of that unity of government which constitutes us one people? The political prosperity which this country has attained, and which it now enjoys, has been acquired mainly through the instrumentality of the present government. While this agent continues, the capacity of attaining to still higher degrees of prosperity exists also. We have, while this lasts, a political life capable of beneficial exertion, with power to resist or overcome misfortunes, to sustain us against the ordinary accidents of human affairs, and to promote, by active efforts, every public interest. But dismemberment strikes at the very being which preserves these faculties. It would lay its rude and ruthless hand on this great agent itself. It would sweep away, not only what we possess, but all power of regaining lost, or acquiring new possessions. It would leave the country not only bereft of its prosperity and happiness, but without limbs, or organs, or faculties, by which to exert itself hereafter in the pursuit of that prosperity and happiness. [Sidenote: Dismemberment of the United States the greatest of evils.]