It is the maintenance of slavery by law in a state, not parallels of latitude, that makes its a southern state; and the absence of this, that makes it a northern state.
William H. SewardThe two systems slave and free-labor are incompatible. They have never permanently existed together in one country, and they never can.
William H. SewardThe constitution regulates our stewardship; the constitution devotes the domain to union, to justice, to defense, to welfare, and to liberty. 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 in the highest attainable degree their happiness.
William H. Seward