It may be argued that there are certain conditions that make necessities and impose them upon us, and to the extent that a necessity is imposed upon a man he must submit to it. I think that was the condition in which we found ourselves when we established this government. We had slavery among us, we could not get our constitution unless we permitted them to remain in slavery, we could not secure the good we did secure if we grasped for more, and having by necessity submitted to that much, it does not destroy the principle that is the charter of our liberties. Let that charter stand as our standard.
Speech at Chicago (1858)