Our national strife springs not from our permanent part; not from the land we inhabit: not from our national homestead. There is no possible severing of this but would multiply and not mitigate evils among us. In all its adaptations and aptitudes it demands union and abhors separation. In fact, it would ere long force reunion, however much of blood and treasure the separation might have cost. Our strife pertains to ourselves—to the passing generations of men—and it can without convulsion be hushed forever with the passing of one generation.

Second State of the Union address (1862)