Individual liberty is individual power, and as the power of a community is a mass compounded of individual powers, the nation which enjoys the most f… - John Quincy Adams

The United States of America and the people of every State of which they are composed are each of them sovereign powers. The legislative authority of the whole is exercised by Congress under authority granted them in the common Constitution. The legislative power of each State is exercised by assemblies deriving their authority from the constitution of the State. Each is sovereign within its own province. The distribution of power between them presupposes that these authorities will move in harmony with each other. The members of the State and General Governments are all under oath to support both, and allegiance is due to the one and to the other. The case of a conflict between these two powers has not been supposed, nor has any provision been made for it in our institutions; as a virtuous nation of ancient times existed more than five centuries without a law for the punishment of patricide.

And now, friends and countrymen, if the wise and learned philosophers of the elder world, the first observers of nutation and aberration, the discoverers of maddening ether and invisible planets, the inventors of Congreve rockets and shrapnel shells, should find their hearts disposed to enquire what has America done for the benefit of mankind? Let our answer be this: America, with the same voice which spoke herself into existence as a nation, proclaimed to mankind the inextinguishable rights of human nature, and the only lawful foundations of government.

The discussion of this Missouri question has betrayed the secret of their souls. In the abstract they admit that slavery is an evil, they disclaim it, and cast it all upon the shoulder of…Great Britain. But when probed to the quick upon it, they show at the bottom of their souls pride and vainglory in their condition of masterdom. They look down upon the simplicity of a Yankee’s manners, because he has no habits of overbearing like theirs and cannot treat negroes like dogs. It is among the evils of slavery that it taints the very sources of moral principle. It establishes false estimates of virtue and vice: for what can be more false and heartless than this doctrine which makes the first and holiest rights of humanity to depend upon the color of the skin?