Negative libertyNegative liberty is freedom from interference by other people. Negative liberty is primarily concerned with freedom from external restraint and contrasts with positive liberty (the possession of the power and resources to fulfill one's own potential). The distinction originated with Bentham, was popularized by T.H. Green and Guido De Ruggiero, and is now best known through Isaiah Berlin's 1958 lecture "Two Concepts of Liberty". Stanford Encyclopedia of Philosophy describes negative liberty: "The negative concept of freedom .
Political freedomPolitical freedom (also known as political autonomy or political agency) is a central concept in history and political thought and one of the most important features of democratic societies. Political freedom was described as freedom from oppression or coercion, the absence of disabling conditions for an individual and the fulfillment of enabling conditions, or the absence of life conditions of compulsion, e.g. economic compulsion, in a society.
Civil and political rightsCivil and political rights are a class of rights that protect individuals' freedom from infringement by governments, social organizations, and private individuals. They ensure one's entitlement to participate in the civil and political life of society and the state. Civil rights include the ensuring of peoples' physical and mental integrity, life, and safety; protection from discrimination on grounds such as sex, race, sexual orientation, national origin, color, age, political affiliation, ethnicity, social class, religion, and disability; and individual rights such as privacy and the freedom of thought, speech, religion, press, assembly, and movement.
LibertarianismLibertarianism (from libertaire, "libertarian"; from libertas, "freedom") is a political philosophy that upholds liberty as a core value. Libertarians seek to maximize autonomy and political freedom, and minimize the state's encroachment on and violations of individual liberties; emphasizing the rule of law, pluralism, cosmopolitanism, cooperation, civil and political rights, bodily autonomy, freedom of association, free trade, freedom of expression, freedom of choice, freedom of movement, individualism, and voluntary association.
Classical liberalismClassical liberalism is a political tradition and a branch of liberalism that advocates free market and laissez-faire economics; and civil liberties under the rule of law, with special emphasis on individual autonomy, limited government, economic freedom, political freedom and freedom of speech. Classical liberalism, contrary to liberal branches like social liberalism, looks more negatively on social policies, taxation and the state involvement in the lives of individuals, and it advocates deregulation.
Social contractIn moral and political philosophy, the social contract is a theory or model that originated during the Age of Enlightenment and usually, although not always, concerns the legitimacy of the authority of the state over the individual. Social contract arguments typically are that individuals have consented, either explicitly or tacitly, to surrender some of their freedoms and submit to the authority (of the ruler, or to the decision of a majority) in exchange for protection of their remaining rights or maintenance of the social order.