"Political philosophy maintaining that all persons are the absolute owners of their own lives, and should be free to do whatever they wish with their persons or property, provided they allow others the same liberty and avoid abusing their liberty. Broadly speaking, there are two types of libertarians: consequentialists and rights theorists.[1] Rights theorists hold that it is morally imperative that all human interaction, including government interaction with private individuals, should be voluntary and consensual. They maintain that the initiation of force by any person or government, against another person or their property — with "force" meaning the use of physical force, the threat of it, or the commission of fraud against someone — who has not initiated physical force, threat, or fraud, is a violation of that principle. This form of libertarianism is associated with Objectivists, as well as with individualist anarchists who believe opposition to the State (i.e, government in general) is consistent with this principle.
Consequentialist libertarians do not have a moral prohibition against "initiation of force," but believe that allowing a very large scope of political and economic liberty results in the maximum well-being or efficiency for a society - even if protecting this liberty involves some initiation of force by government. However, such governmental actions are limited in the free society consequentialists envision. This type of libertarianism is associated with Milton Friedman, Ludwig von Mises, and Friedrich Hayek. Some writers who have been called libertarians have also been referred to as classical liberals, by others or themselves. Also, some use the phrase "the freedom philosophy" to refer to libertarianism, classical liberalism, or both.
Libertarians generally do not oppose force used in response to initiatory aggressions such as violence, fraud or trespassing. Libertarians favor an ethic of self-responsibility and strongly oppose conscription and the welfare state, because they believe coercing someone to provide charity and military service is ethically wrong, ultimately counter-productive, or both. Apart from some very basic principles favoring personal freedom and free markets, there is not a canon of "official" libertarian beliefs. Libertarians may disagree with other libertarians over specific issues.
Polls show that 10 to 20 percent of voting-age Americans have libertarian views"-http://en.wikipedia.org/wiki/Libertarian
