Polis: The ancient Greek concept of a self-governing city-state, which served as the basic political unit and model for Western political thought.
Sovereignty:The supreme authority within a territory, which grants a polity the power to make and enforce laws, and to act independently on the international stage.
Civic Virtue:The moral and ethical qualities considered necessary for the successful functioning of a polity, such as civic engagement, public service, and respect for the common good.