My argument against the dissolution of the American Union is this. It would place the slave system more exclusively under the control of the slave-holding states, and withdraw it from the power in the northern states which is opposed to slavery. Slavery is essentially barbarous in its character. It, above all things else, dreads the presence of an advanced civilization. It flourishes best where it meets no reproving frowns, and hears no condemning voices. While in the Union it will meet with both. Its hope of life, in the last resort, is to get out of the Union. I am, therefore, for drawing the bond of the Union more completely under the power of the free states. What they most dread, that I most desire.