Albert Jay Nock was an influential writer who criticized political action and protested state interventionism at all levels.
Franz Oppenheimer, a German sociologist, wrote a comprehensive explanation of the history of the state as a history of conquest.
José Ortega y Gasset was a philosopher who wrote on the evils of state power and the way society grew and changed after the Industrial Revolution.
A well-known novelist and essayist, George Orwell’s social criticisms against totalitarianism still remain relevant today.
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.
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.
Read was an activist who founded the Foundation for Economic Education, a free-market and anti-socialist nonprofit and educational organization.
Rousseau is regarded as a great political philosopher and contractarian, though his ideas for society often rely on a basis of coercive liberty.
Joseph Schumpeter was an influential 20th century economist who staunchly defended capitalism and the cycle of innovation and growth it creates.
Nassau William Senior was an important British economist who contributed to theories of utility, political economy, and value.
The Third Earl of Shaftesbury, Cooper was a statesman and philosopher with an interest in individualism and the natural harmony of interests.
Sidney was a fervent republican whose philosophy and politics, as well as his eventual martyrdom, influenced democratic revolutionaries who followed him.
Simon was an American economist who wrote on the ways in which human innovation and efficiency makes population growth a net benefit for production.
Thomas Sowell is an economist and social theorist who has written and taught on the topics of human achievement, free markets, race, and culture.