This document discusses theories of political philosophy and the justification of government. It examines social contract theory as proposed by Thomas Hobbes, John Locke, and Jean-Jacques Rousseau. Hobbes viewed humans in a state of nature as driven by selfishness and war, requiring an absolute sovereign to impose order. Locke believed humans are rational and have natural rights, forming limited governments to protect rights. Rousseau emphasized personal freedom and that legitimate governments require the consent of the governed. The document outlines debates around the role and authority of the state.