Thomas Paine was a political agitator who wrote to empower people to replace their existing tyrannical governments with liberal republics.
Isabel Paterson was one of the first well-known libertarian women of her era. She wrote in avid support of minimal government and the free economy.
Ron Paul was the 1988 Libertarian Party presidential nominee and is a public figure who has helped bring libertarianism to political attention.
Karl Popper’s theory of knowledge and writings on social philosophy helped to shape much of today’s methodology of social science.
Richard A. Posner is a judge and legal theorist whose work was the foundation for the law and economics movement, which approaches law through economics.
Roscoe Pound was an influential legal scholar whose “sociological jurisprudence” approach tried to adjust the law to better match social realities.
Richard Price was a British philosopher who supported American Independence and the French Revolution and whose work focused on reason in ethics.
Pierre-Joseph Proudhon, self-described both as an anarchist and as a socialist, contributed several rebukes of government and defenses of individualism.