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  • No man pays double or twice for the same thing, forasmuch as nothing can be spent but once.

    Sir William Petty (1769). “Tracts; Chiefly Relating to Ireland: Containing: I. A Treatise of Taxes and Contributions. II. Essays in Political Arithmetic. III. The Political Anatomy of Ireland. By the Late Sir William Petty. To which is Prefixed His Last Will”, p.87