The United States are a political state, or organized society, whose end is government, for the security, welfare, and happiness of all who live under its protection.
William H. SewardBut assuming the same premises, to wit, that all men are equal by the law of nature and of nations, the right of property in slaves falls to the ground; for one who is equal to another cannot be the owner or property of that other.
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. Seward