Senator William Seward’s Speech to the Senate, March 11th 1850
There is another aspect of the principle of compromise, which deserves consideration. It assumes that slavery, if not the only institution in a slave State, is at least a ruling institution, and that this characteristic is recognized by the Constitution. But slavery is only one of many, institutions there – freedom is equally an institution there. Slavery is only a temporary, accidental, partial, and incongruous one; freedom, on the contrary, is a perpetual, organic, universal one, in harmony with the Constitution of the United States.
But there is a higher law than the Constitution, which regulates our authority over the domain, and devotes it to the same noble purposes. The territory is a part – no inconsiderable part – of the common heritage of mankind, bestowed upon them by the Creator of the universe. We are his stewards, and must so discharge our trust as to secure the highest attainable degree, their happiness …
You say that you will not submit to the exclusion of slaves from the new territories. What will you gain by resistance? Liberty follows the sword, although her sway is one of space and beneficence. Can you propagate slavery, then, by the sword?