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What was the exact point of contact between the old Jus Gentium and the Law of Nature? I think that they touch and blend through Æquitas, or Equity in its original sense; and here we seem to come to the first appearance in jurisprudence of this famous term, Equity. In examining an expression which has so remote an origin and so long a history as this, it is always safest to penetrate, if possible, to the simple metaphor or figure which at first shadowed forth the conception. It has generally been supposed that Æquitas is the equivalent of the Greek ἰσότης, i.e. the principle of equal or proportionate distribution. The equal division of numbers or physical magnitudes is doubtless closely entwined with our perceptions of justice; there are few associations which keep their ground in the mind so stubbornly or are dismissed from it with such difficulty by the deepest thinkers. Yet in tracing the history of this association, it certainly does not seem to have suggested itself to very early thought, but is rather the offspring of a comparatively late philosophy. It is remarkable too that the "equality" of laws on which the Greek democracies prided themselves—that equality which, in the beautiful drinking song of Callistratus, Harmodius and Aristogiton are said to have given to Athens—had little in common with the "equity" of the Romans. The first was an equal administration of civil laws