John Locke's life and writings profoundly shaped modern political thought, particularly through his concept of the social contract and ideas about natural rights, which include life, liberty, and property. Locke argued that governments are formed to protect these rights and that authority derives from the consent of the governed. His belief in the right to revolt against unjust government influenced both the American Revolution and the development of liberal democratic theories. Through works like the Two Treatises of Government, Locke laid the groundwork for discussions on democracy, individualism, and human rights.