Sociology began as a comparative study of societies that often found libertarian conclusions not egalitarianism.
Thomas Sowell is an economist and social theorist who has written and taught on the topics of human achievement, free markets, race, and culture.
Spencer was a major influence on 19th century liberalism. His work on evolutionary theory and social order made him one of the first sociologists.
Spontaneous order theory suggests that society is the aggregate of individual action, and that institutions of society form without government planning.
Lysander Spooner was a legal and political theorist favoring individualist anarchy. He is best known for his activism as an abolitionist.
What the state should look like varies even among libertarians.
George J. Stigler was a Nobel Prize winning economist who wrote on a number of topics, including prices, regulation, and information theory.
Max Stirner was a German writer who presented a case for egoism and freedom that influenced many individualist anarchists after him.
Stoicism was a philosophical movement in Ancient Greece and Rome based on rational self-discipline, virtue, and natural law as the basis for state authority.
Subsidiarity is decentralized, bottom-up decision-making. Libertarians support decentralization that places the individual in charge of their own decisions.
William Graham Sumner was an economist and sociologist. He is known for his staunch opposition to American imperialism and dedication to individualism.
Thomas Szasz was an influential writer who opposed involuntary or coercive hospitalization for those deemed “mentally ill,” a label he challenged.