This is the author accepted manuscript. The final version is available from Oxford University Press via the DOI in this recordThis article explores ideas of decadence and decline in political thought, from classical Greek and Roman speculation about the cycle of political regimes to early modern discussions of the importance of civic virtue, the role of institutions and constitutions, and the dangerous effects of luxury, culminating in eighteenth-century concerns about the risk of excessive civilization. It also considers the varied political stances of the decadents themselves in the wider context of the nineteenth-century critique of modernity and the historicization of the present as a “late” stage of human development. Such a diagnosis ...