Plainly they were men's natural "rights"; for these are the only "rights" that "the people" ever had, or, consequently, that they could "retain."
And as no attempt is made to enumerate all these "other rights," or any considerable number of them, and as it would be obviously impossible to enumerate all, or any considerable number, of them; and as no exceptions are made of any of them, the necessary, the legal, the inevitable inference is, that they were all "retained"; and that congress should have no power to violate any of them.
Now, if congress and the courts had attempted to obey this amendment, as they were constitutionally bound to do, they would soon have found that they had really no lawmaking power whatever left to them; because they would have found that they could make no law at all, of their own invention, that would not violate men's natural rights.
All men's natural rights are co-extensive with natural law, the law of justice; or justice as a science. This law is the exact measure, and the only measure, of any and every man's natural rights. No one of these natural rights can be taken from any man, without doing him an injustice; and no more than these rights can be given to any one, unless by taking from the natural rights of one or more others.
In short, every man's natural rights are, first, the right to do, with himself and his property, everything that he pleases to do, and that justice towards others does not forbid him to do; and, secondly, to be free from all compulsion, by others, to do anything whatever, except what justice to others requires him to do.
Such, then, has been the constitutional law of this country since 1791; admitting, for the sake of the argument—what I do not really admit to be a fact—that the constitution, so called, has ever been a law at all.
This amendment, from the remarkable circumstances under which it was proposed and adopted, must have made an impression upon the minds of all the public men of the time; although they may not have fully comprehended, and doubtless did not fully comprehend, its sweeping effects upon all the supposed powers of the government.
But whatever impression it may have made upon the public men of that time, its authority and power were wholly lost upon their successors; and probably, for at least eighty years, it has never been heard of, either in congress or the courts.
John Marshall was perfectly familiar with all the circumstances, under which this, and the other nine amendments, were proposed and adopted. He was thirty-two years old (lacking seven days) when the constitution, as originally framed, was published (September 17, 1787); and he was a member of the Virginia convention that ratified it. He knew perfectly the objections that were raised to it, in that convention, on the ground of its inadequate guaranty of men's natural rights. He knew with what force these objections were urged by some of the ablest members of the convention. And he knew that, to obviate these objections, the convention, as a body, without a dissenting voice, so far as appears, recommended that very stringent amendments, for securing men's natural rights, be made to the constitution. And he knew further, that, but for these amendments being recommended, the constitution would not have been adopted by the convention.[6]
[6] For the amendments recommended by the Virginia convention, see "Elliot's Debates," Vol. 3, pp. 657 to 663. For the debates upon these amendments, see pages 444 to 452, and 460 to 462, and 466 to 471, and 579 to 652.