lectures

Plato to Polybius on Constitutional Change

Gresham College

May 28

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Plato in the fourth century BCE penned an indelible sequence of constitutional decline ending in tyranny, as well as a more complex set of possibilities for mixing different constitutional kinds. Two centuries later, Polybius portrayed constitutional change as cyclical, with an eventual collapse of democracy into ‘ochlocracy’ (mob rule) and then reversion to monarchy. These and other ancient authors proposed that a mixed constitution might prevent unwanted political change – an idea that would influence many later generations of political thinkers.