“It will be remembered, that the object of the several states in the adoption of that instrument, was not the establishment of a general consolidated government, which should swallow up the state sovereignties, and annihilate their several jurisdictions, and powers, as states; but a federal government, with powers limited to certain determinate objects; viz. their intercourse and concerns with foreign nations; and with each other, as separate and independent states; and, as members of the same confederacy: leaving the administration of their internal, and domestic concerns, to the absolute and uncontrolable jurisdiction of the states, respectively; except in one or two particular instances, specified, and enumerated in the constitution.”

United States v. Cruikshank, 92 U.S. 542 (1875)

17 U.S. (4 Wheaton) 316, 411-412
McCulloch v. Maryland (1819)
Context: In America, the powers of sovereignty are divided between the Government of the Union and those of the States. They are each sovereign with respect to the objects committed to it, and neither sovereign with respect to the objects committed to the other. We cannot comprehend that train of reasoning, which would maintain that the extent of power granted by the people is to be ascertained not by the nature and terms of the grant, but by its date. Some State Constitutions were formed before, some since, that of the United States. We cannot believe that their relation to each other is in any degree dependent upon this circumstance. Their respective powers must, we think, be precisely the same as if they had been formed at the same time. Had they been formed at the same time, and had the people conferred on the General Government the power contained in the Constitution, and on the States the whole residuum of power, would it have been asserted that the Government of the Union was not sovereign, with respect to those objects which were intrusted to it, in relation to which its laws were declared to be supreme? If this could not have been asserted, we cannot well comprehend the process of reasoning which maintains that a power appertaining to sovereignty cannot be connected with that vast portion of it which is granted to the General Government, so far as it is calculated to subserve the legitimate objects of that Government.

Rousseau's Theory of the State (1873)
Context: We … have humanity divided into an indefinite number of foreign states, all hostile and threatened by each other. There is no common right, no social contract of any kind between them; otherwise they would cease to be independent states and become the federated members of one great state. But unless this great state were to embrace all of humanity, it would be confronted with other great states, each federated within, each maintaining the same posture of inevitable hostility. War would still remain the supreme law, an unavoidable condition of human survival.
Every state, federated or not, would therefore seek to become the most powerful. It must devour lest it be devoured, conquer lest it be conquered, enslave lest it be enslaved, since two powers, similar and yet alien to each other, could not coexist without mutual destruction.
The State, therefore, is the most flagrant, the most cynical, and the most complete negation of humanity. It shatters the universal solidarity of all men on the earth, and brings some of them into association only for the purpose of destroying, conquering, and enslaving all the rest. It protects its own citizens only; it recognises human rights, humanity, civilisation within its own confines alone. Since it recognises no rights outside itself, it logically arrogates to itself the right to exercise the most ferocious inhumanity toward all foreign populations, which it can plunder, exterminate, or enslave at will. If it does show itself generous and humane toward them, it is never through a sense of duty, for it has no duties except to itself in the first place, and then to those of its members who have freely formed it, who freely continue to constitute it or even, as always happens in the long run, those who have become its subjects. As there is no international law in existence, and as it could never exist in a meaningful and realistic way without undermining to its foundations the very principle of the absolute sovereignty of the State, the State can have no duties toward foreign populations. Hence, if it treats a conquered people in a humane fashion, if it plunders or exterminates it halfway only, if it does not reduce it to the lowest degree of slavery, this may be a political act inspired by prudence, or even by pure magnanimity, but it is never done from a sense of duty, for the State has an absolute right to dispose of a conquered people at will.
This flagrant negation of humanity which constitutes the very essence of the State is, from the standpoint of the State, its supreme duty and its greatest virtue. It bears the name patriotism, and it constitutes the entire transcendent morality of the State. We call it transcendent morality because it usually goes beyond the level of human morality and justice, either of the community or of the private individual, and by that same token often finds itself in contradiction with these. Thus, to offend, to oppress, to despoil, to plunder, to assassinate or enslave one's fellowman is ordinarily regarded as a crime. In public life, on the other hand, from the standpoint of patriotism, when these things are done for the greater glory of the State, for the preservation or the extension of its power, it is all transformed into duty and virtue. And this virtue, this duty, are obligatory for each patriotic citizen; everyone is supposed to exercise them not against foreigners only but against one's own fellow citizens, members or subjects of the State like himself, whenever the welfare of the State demands it.
This explains why, since the birth of the State, the world of politics has always been and continues to be the stage for unlimited rascality and brigandage, brigandage and rascality which, by the way, are held in high esteem, since they are sanctified by patriotism, by the transcendent morality and the supreme interest of the State. This explains why the entire history of ancient and modern states is merely a series of revolting crimes; why kings and ministers, past and present, of all times and all countries — statesmen, diplomats, bureaucrats, and warriors — if judged from the standpoint of simple morality and human justice, have a hundred, a thousand times over earned their sentence to hard labour or to the gallows. There is no horror, no cruelty, sacrilege, or perjury, no imposture, no infamous transaction, no cynical robbery, no bold plunder or shabby betrayal that has not been or is not daily being perpetrated by the representatives of the states, under no other pretext than those elastic words, so convenient and yet so terrible: "for reasons of state."

Striking down the "Take-Title" provision of the Low-Level Radioactive Waste Policy Amendments Act in New York v. United States, 505 U.S. 144 (1992).

ME http://www.yamaguchy.netfirms.com/7897401/jefferson/eppes2.html 13:431
1810s, Letters to John Wayles Eppes (1813)

Metcalf & Eddy v. Mitchell, 269 U.S. 514., 522 (1926).

2000s, The Real Abraham Lincoln: A Debate (2002), Q&A

1860s, Fourth of July Address to Congress (1861)