If we resort for a criterion to the different principles on which different forms of government are established, we may define a republic to be, or at least may bestow that name on, a government which derives all its powers directly or indirectly from the great body of the people, and is administered by persons holding their offices during pleasure for a limited period, or during good behavior.
James MadisonIn order to judge of the form to be given to this institution the Senate, it will be proper to take a view of the ends to be served by it. These were,first, to protect the people against their rulers, secondly, to protect the people against the transient impressions into which they themselves might be led.
James MadisonIt may be considered as an objection inherent in the principle, that as every appeal to the people would carry an implication of some defect in the government, frequent appeals would in great measure deprive the government of that veneration which time bestows on every thing, and without which perhaps the wisest and freest governments would not possess the requisite stability . . . a constitutional road to the decision of the people ought to be marked out and kept open, for certain great and extraordinary occasions
James MadisonA government resting on the minority is an aristocracy, not a Republic, and could not be safe with a numerical and physical force against it, without a standing army, an enslaved press and a disarmed populace.
James MadisonBesides the advantage of being armed, which the Americans possess over the people of almost every other nation, the existence of subordinate governments, to which the people are attached, and by which the militia officers are appointed, forms a barrier against the enterprises of ambition, more insurmountable than any which a simple government of any form can admit of.
James Madison