“The rights of men, that is to say, the natural rights of mankind, are indeed sacred things; and if any public measure is proved mischievously to affect them, the objection ought to be fatal to that measure, even if no charter at all could be set up against it. If these natural rights are further affirmed and declared by express covenants, if they are clearly defined and secured against chicane, against power, and authority, by written instruments and positive engagements, they are in a still better condition: they partake not only of the sanctity of the object so secured, but of that solemn public faith itself, which secures an object of such importance. . . . The things secured by these instruments may, without any deceitful ambiguity, be very fitly called the chartered rights of men.”