But it is evident that, after the formation of the Federal Government by the adoption of the Constitution, the highest exertion of State power would be incompetent to bestow a character or status created by the Constitution, or conferred in virtue of its authority only. Upon those, therefore, who were not originally parties to the Federal compact, or who are not admitted and adopted as parties thereto, in the mode prescribed by its paramount authority, no State could have power to bestow the character or the rights and privileges exclusively reserved by the States for the action of the Federal Government by that compact.
The States, in the exercise of their political power, might, with reference to their peculiar Government and jurisdiction, guaranty the rights of person and property, and the enjoyment of civil and political privileges, to those whom they should be disposed to make the objects of their bounty; but they could not reclaim or exert the powers which they had vested exclusively in the Government of the United States. They could not add to or change in any respect the class of persons to whom alone the character of citizen of the United States appertained at the time of the adoption of the Federal Constitution. They could not create citizens of the United States by any direct or indirect proceeding.
According to the view taken of the law, as applicable to the demurrer to the plea in abatement in this cause, the questions subsequently raised upon the several pleas in bar might be passed by, as requiring neither a particular examination, nor an adjudication directly upon them. But as these questions are intrinsically of primary interest and magnitude, and have been elaborately discussed in argument, and as with respect to them the opinions of a majority of the court, including my own, are perfectly coincident, to me it seems proper that they should here be fully considered, and, so far as it is practicable for this court to accomplish such an end, finally put to rest.
The questions then to be considered upon the several pleas in bar, and upon the agreed statement of facts between the counsel, are: 1st. Whether the admitted master and owner of the plaintiff, holding him as his slave in the State of Missouri, and in conformity with his rights guarantied to him by the laws of Missouri then and still in force, by carrying with him for his own benefit and accommodation, and as his own slave, the person of the plaintiff into the State of Illinois, within which State slavery had been prohibited by the Constitution thereof, and by retaining the plaintiff during the commorancy of the master within the State of Illinois, had, upon his return with his slave into the State of Missouri, forfeited his rights as master, by reason of any supposed operation of the prohibitory provision in the Constitution of Illinois, beyond the proper territorial jurisdiction of the latter State? 2d. Whether a similar removal of the plaintiff by his master from the State of Missouri, and his retention in service at a point included within no State, but situated north of thirty-six degrees thirty minutes of north latitude, worked a forfeiture of the right of property of the master, and the manumission of the plaintiff?
In considering the first of these questions, the acts or declarations of the master, as expressive of his purpose to emancipate, may be thrown out of view, since none will deny the right of the owner to relinquish his interest in any subject of property, at any time or in any place. The inquiry here bears no relation to acts or declarations of the owner as expressive of his intent or purpose to make such a relinquishment; it is simply a question whether, irrespective of such purpose, and in opposition thereto, that relinquishment can be enforced against the owner of property within his own country, in defiance of every guaranty promised by its laws; and this through the instrumentality of a claim to power entirely foreign and extraneous with reference to himself, to the origin and foundation of his title, and to the independent authority of his country. A conclusive negative answer to such an inquiry is at once supplied, by announcing a few familiar and settled principles and doctrines of public law.
Vattel, in his chapter on the general principles of the laws of nations, section 15th, tells us, that "nations being free and independent of each other in the same manner that men are naturally free and independent, the second general law of their society is, that each nation should be left in the peaceable enjoyment of that liberty which she inherits from nature."
"The natural society of nations," says this writer, "cannot subsist unless the natural rights of each be respected." In section 16th he says, "as a consequence of that liberty and independence, it exclusively belongs to each nation to form her own judgment of what her conscience prescribes for her—of what it is proper or improper for her to do; and of course it rests solely with her to examine and determine whether she can perform any office for another nation without neglecting the duty she owes to herself. In all cases, therefore, in which a nation has the right of judging what her duty requires, no other nation can compel her to act in such or such a particular manner, for any attempt at such compulsion would be an infringement on the liberty of nations." Again, in section 18th, of the same chapter, "nations composed of men, and considered as so many free persons living together in a state of nature, are naturally equal, and inherit from nature the same obligations and rights. Power or weakness does not produce any difference. A small republic is no less a sovereign state than the most powerful kingdom."
So, in section 20: "A nation, then, is mistress of her own actions, so long as they do not affect the proper and perfect rights of any other nation—so long as she is only internally bound, and does not lie under any external and perfect obligation. If she makes an ill use of her liberty, she is guilty of a breach of duty; but other nations are bound to acquiesce in her conduct, since they have no right to dictate to her. Since nations are free, independent, and equal, and since each possesses the right of judging, according to the dictates of her conscience, what conduct she is to pursue, in order to fulfil her duties, the effect of the whole is to produce, at least externally, in the eyes of mankind, a perfect equality of rights between nations, in the administration of their affairs, and in the pursuit of their pretensions, without regard to the intrinsic justice of their conduct, of which others have no right to form a definitive judgment."
Chancellor Kent, in the 1st volume of his Commentaries, lecture 2d, after collating the opinions of Grotius, Heineccius, Vattel, and Rutherford, enunciates the following positions as sanctioned by these and other learned publicists, viz: that "nations are equal in respect to each other, and entitled to claim equal consideration for their rights, whatever may be their relative dimensions or strength, or however greatly they may differ in government, religion, or manners. This perfect equality and entire independence of all distinct States is a fundamental principle of public law. It is a necessary consequence of this equality, that each nation has a right to govern itself as it may think proper, and no one nation is entitled to dictate a form of government or religion, or a course of internal policy, to another." This writer gives some instances of the violation of this great national immunity, and amongst them the constant interference by the ancient Romans, under the pretext of settling disputes between their neighbors, but with the real purpose of reducing those neighbors to bondage; the interference of Russia, Prussia, and Austria, for the dismemberment of Poland; the more recent invasion of Naples by Austria in 1821, and of Spain by the French Government in 1823, under the excuse of suppressing a dangerous spirit of internal revolution and reform.
With reference to this right of self-government in independent sovereign States, an opinion has been expressed, which, whilst it concedes this right as inseparable from and as a necessary attribute of sovereignty and independence, asserts nevertheless some implied and paramount authority of a supposed international law, to which this right of self-government must be regarded and exerted as subordinate; and from which independent and sovereign States can be exempted only by a protest, or by some public and formal rejection of that authority. With all respect for those by whom this opinion has been professed, I am constrained to regard it as utterly untenable, as palpably inconsistent, and as presenting in argument a complete felo de se.