Libertarianism (from , "libertarian"; from , "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, free association, free trade, freedom of expression, freedom of choice, freedom of movement, individualism, and voluntary association. Libertarians are often skeptical of or opposed to authority, state power, warfare, militarism and nationalism, but some libertarians diverge on the scope of their opposition to existing economic and political systems. Various schools of Libertarian thought offer a range of views regarding the legitimate functions of state and private power, often calling for the restriction or dissolution of coercive social institutions. Different categorizations have been used to distinguish various forms of Libertarianism. Scholars distinguish libertarian views on the nature of property and capital, usually along left–right or socialist–capitalist lines. Libertarians of various schools were influenced by liberal ideas. Libertarianism originated as a form of left-wing politics such as anti-authoritarian and anti-state socialists like anarchists, especially social anarchists, but more generally libertarian communists/Marxists and libertarian socialists. These libertarians seek to abolish capitalism and private ownership of the means of production, or else to restrict their purview or effects to usufruct property norms, in favor of common or cooperative ownership and management, viewing private property as a barrier to freedom and liberty. While all libertarians support some level of individual rights, left-libertarians differ by supporting an egalitarian redistribution of natural resources. Left-libertarian ideologies include anarchist schools of thought, alongside many other anti-paternalist and New Left schools of thought centered around economic egalitarianism as well as geolibertarianism, green politics, market-oriented left-libertarianism and the Steiner–Vallentyne school. Around the turn of the 21st century, libertarian socialism grew in popularity and influence as part of the anti-war, anti-capitalist and anti-globalisation movements. In the mid-20th century, American right-libertarian proponents of anarcho-capitalism and minarchism co-opted the term libertarian to advocate laissez-faire capitalism and strong private property rights such as in land, infrastructure and natural resources. The latter is the dominant form of libertarianism in the United States. This new form of libertarianism was a revival of classical liberalism in the United States, which occurred due to American liberals embracing progressivism and economic interventionism in the early 20th century after the Great Depression and with the New Deal. Since the 1970s,