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  • An house is of a double nature, viz., one, wherein it is a way and means of expence, the other as it is an instrument and tool of gain.

    Sir William Petty (1769). “Tracts, Chiefly Relating to Ireland: Containing: 1. A Treatise of Taxes and Contributions. II. Essays in Political Arithmetic. III. The Political Anatomy of Ireland”, p.26