Final answer:
John Locke argued for a government that protects the natural rights of life, liberty, and property, and advocated that people have the right to overthrow a government that does not. His ideas on popular sovereignty and separation of powers influenced the U.S. Constitution.
Step-by-step explanation:
John Locke, a pivotal figure in the Enlightenment and democratic thought, argued against the divine right of kings and advocated for a system of government that served the interests of the people. In his seminal work, Two Treatises of Government, Locke espoused the idea of a social contract, emphasizing that government is a form of an agreement between the rulers and the ruled, with the purpose of protecting the natural rights of life, liberty, and property. He introduced the revolutionary concept that people have the right to overthrow a government that fails to fulfill its duties. Additionally, Locke's philosophy laid the groundwork for the principle of popular sovereignty and the separation of powers, which became foundational in the creation of the U.S. Constitution.