It is the philosophy that a person has the absolute rights to their own person. That they are free to do what they wish as long as it does not harm another person.
A libertarian advocates liberty, esp. with regard to conduct.
My understanding of the difference: Libertarianism: Freedom of thought and action and the virtue of self interest, even if this affects other people adversely? Liberalism (Classical not Modern): As...
Libertarianism is the correct way. It is basically free speech, everyone equal, free markets, better society and the enemy of evil socialism and communism.