The question, then, returns, What is “a republican form of government,” according to the requirement of the National Constitution? Mark, if you please, that it is not the meaning of this term according to Plato and Cicero, not even according to examples of history, nor according to definitions of monarchical writers or lexicographers,--but what is “a republican form of government” according to the requirements of the National Constitution? Of course these important words were not introduced and unanimously adopted without purpose. They must be interpreted so as to have real meaning. Any interpretation rendering them insignificant must be discarded as irrational and valueless, if not dishonest. They cannot be treated as a phrase only, nor a dead letter, nor an empty figure-head. Nor can they be treated as profession and nothing more, so that the Constitution shall merely _seem_ to be republican, reversing the old injunction, “To be rather than to seem,”--_Esse quam videri_. They must be treated as real. Thus interpreted, they become at once a support of Human Rights and a balance-wheel to our whole political system. In determining their signification, I begin by putting aside what is vague, unsatisfactory, and inapplicable, in order to bring the inquiry directly to American institutions. I put aside all illustration derived from the speculations of ancient philosophers, because, on careful examination, it appears that the term “Republic,” as used by them, was so absolutely different from any idea among us as to exclude their definition from the debate. This captivating term is of Roman origin. It is the same as “commonwealth,” and means the public interest. As originally employed, it was not a specific term, describing a particular form of government, but a general term, embracing all governments, whether kingly, aristocratic, democratic, or mixed. Its equivalent in Greece was “polity,” being the general term for all governments. Therefore the definition of a Republic, according to these ancients, is simply the definition of an organized government, whether kingly, aristocratic, democratic, or mixed. Following this definition, the words of the Constitution are only the guaranty of an organized government, without determining its character. This, of course, leaves open the very question under consideration.