John Locke, English empiricist philosopher who believed that all knowledge is derived from sensory experience. Wrote Two Treatises on Government as justification of Glorious Revolution and end of absolutism in England. He argued that man is born good and has rights to life, liberty, and property. To protect these rights, people enter social contract to create government with limited powers. If a government did not protect these rights or exceeded its authority, Locke believed the people have the right to revolt. The ideas of consent of the governed, social contract, and right of revolution influenced the United States Declaration of Independence and the U.S. Constitution. He also laid the foundations for criticism of absolute monarchy in France.