The storm of frenzy and faction must inevitably dash itself in vain against the unshaken rock of the Constitution. I shall never doubt it. I know that the Union is stronger a thousand times than all the wild and chimerical schemes of social change which are generated one after another in the unstable minds of visionary sophists and interested agitators. I rely confidently on the patriotism of the people, on the dignity and self-respect of the States, on the wisdom of Congress, and, above all, on the continued gracious favor of Almighty God to maintain against all enemies, whether at home or abroad, the sanctity of the Constitution and the integrity of the Union.

Third Annual Message (31 December 1855), as published in Official History of the United States by the Presidents (1900), Vol. 1, by the Fedral Book Concern, p. 362.

https://books.google.com/books?id=iJRPAAAAYAAJ&pg=...