This dissertation pursues a twofold proposition: writers of the long eighteenth century widely presumed that poetry influenced the “common weal” (the common wellbeing, conceived as a national community); and this expectation guided poetic composition even at the level of strategy or “design.” I demonstrate this claim in a series of three case studies, each of which delineates an elaborate, intertextual dialogue in which rival authors developed divergent strategies for civic reform. My analysis emphasizes the category of poiesis (poetic making), negotiated within discursive conventions of neoclassical genres. Chapters 1 and 2 argue that two verse translators of The Works of Virgil exploited to different ends the convention that epic poetr...