Social Contract:A theoretical agreement within a society in which individuals consent, either explicitly or implicitly, to surrender some of their freedoms in exchange for protection of essential rights and maintenance of social order.
Common Good:The benefit or interests of all participants in a society; often used as a principle for justifying governmental actions intended to be beneficial for the entire community.
Sovereignty:The ultimate authority within a territory, possessing full control over its own affairs without external interference; in democratic societies, sovereignty resides with the people