In the third book of the Discourses on Livy, Niccolo Machiavelli argues that republics “do not last if they do not renew themselves” by recourse to their origins, when they were at their most pure. “Because in the process of time that goodness is corrupted, unless something intervenes to lead it back to the mark, it of necessity kills the body.”
Historian J.G.A. Pocock elaborates on this idea, arguing for a “Machiavellian moment” (the title of his sprawling and majestic book on the subject) in which a republic must act to save itself by returning to first principles. Per Pocock, the Renaissance Florentines, the Commonwealthmen of 18th-century Britain, and the Revolutionary-era Americans all faced such a moment and were forced to act against the corruption of their regimes. These moments, however, are not always successful. The Florentines lost their republic, and the Commonwealthmen remained a minority in Britain, whose legacy was predominantly to influence the American patriots at the end of the century.
