Anti-statist doctrine
Libertarians consider that there is an extended domain of individual freedom
defined by every individual's person and private property, and that no one, neither private citizen or government, may under any circumstances, violate this boundary.
Indeed, libertarians consider that no organization, including government, can have any right except those that are voluntarily delegated to it by its members -- which implies that these members must have had these rights to delegate them to begin with.
Thus, according to libertarians, taxation and regulation are at best necessary evils, and where unnecessary are simply evil. Government spending and regulations should be reduced in as much as they replace voluntary private spending with involuntary public spendings, and replace private morality with public coercion. To many libertarians, governments should not establish schools, regulate industry, commerce or agriculture, or run social welfare programs. Nor should government restrict sexual practices, gambling, drug usage, or any other 'victimless' crimes. Libertarians also believe in an extremely broad (and in some cases all-inclusive) interpretation of free speech which should not be restricted by government. For libertarians, government's main imperative should be Laissez-faire -- "Hands off!".
Anarchists and minarchists
All libertarians agree that government should be limited to what is strictly necessary, no more, no less. But there is no consensus among them about how much government is necessary. Hence, libertarians are further divided between the minarchists and the anarcho-capitalists, which are discussed at length in specific articles. Both minarchists and anarcho-capitalists differ in their beliefs from the anarcho-syndicalists or anarcho-socialists, who are usually considered not to be libertarians at all. The Vosem Chart places anarcho-syndicalists in a separate slot from libertarians.
The minarchists believe that a "minimal" or a "night-watchman" state is necessary to guarantee property rights and civil liberties, and for that purpose only. For them, the proper functions of government might include the maintenance of the courts, the police, the military, and perhaps a few other vital functions. While they are technically statists since they support the existence of a government, they would resent the connotations usually meant with this term, of trust in the government to solve any problem.
The anarcho-capitalists, believe that even in matters of justice and protection and particularly in such matters, action by competing private responsible individuals (freely organized in businesses, cooperatives, or organizations of their choice) is much better than action by monopolist governments. While they are technically anarchists, they insist in rejecting the connotations often meant with this term regarding support of a socialist utopia.
Minarchists consider that they are realist while anarcho-capitalists are utopian to believe that governments can be done wholly without. Anarcho-capitalists consider that they are realist and that minarchists are utopian to believe that a state monopoly of violence can be contained within any reasonable limits.
This division is very friendly, and not the source of any deep enmity, despite the sometimes involved theoretic arguments. Libertarians feel much more strongly about their common defense of individual liberty, responsibility and property, than about their possible minarchist vs anarchist differences. Since both minarchists and anarchists believe that existing governments are far, far too intrusive, the two factions seek change in almost exactly the same directions.
Many libertarians don't take position with regards to this division, and don't care about it. Indeed, many libertarians consider that governments exist and will exist in the foreseeable future, up to the end of their lives, so that their efforts are better spent fighting, containing and avoiding the action of governments than trying to figure out what life could or couldn't be without them. Indeed, in recent years libertarianism has attracted many "fellow-travelers" (to borrow a phrase from the Communists) who care little about such theoretic issues and merely wish to reduce the size, corruption, and intrusiveness of government.
Some libertarian philosophers argue that, properly understood, minarchism and anarcho-capitalism are not in contradiction. See Revisiting Anarchism and Government by Tibor R. Machan.
Utilitarianism and natural law
Libertarians tend to take either one of an axiomatic natural law point of view, or a utilitarian point of view, in justifying their beliefs. Some of them (like Frederic Bastiat), claim a natural harmony between these two points of view (that would indeed be but different points of view on a same truth), and consider it irrelevant trying to establish one as truer.
An exposition of utilitarian libertarianism appears in David Friedman's book The Machinery of Freedom, which includes a chapter describing an allegedly highly libertarian culture that existed in Iceland around 800 AD.
For natural law libertarianism, see for instance Robert Nozick.
See also relevant paragraphs about this difference in points of view in the article about Anarcho-capitalism.
Controversies among libertarians
Libertarians do not agree on every topic. Although they share a common tradition of thinkers from centuries past to nowadays, no thinker is ever argued as a common authority whose opinions to blindly accept, only as a reference to which to compare one's opinions and arguments.
These controversies are addressed in separate articles:
Contemporary American libertarians
See also
External links
Libertarian links
Non-libertarian links
For the use of the term "libertarianism" in philosophy, see libertarianism (philosophy).