"Societies with private property are often described as free societies. Part of what this means is surely that owners are free to use their property as they please; they are not bound by social or political decisions. ... But ... it would be equally apposite to describe private property as a system of unfreedom, since it necessarily involves the social exclusion of people from resources that others own. All property systems distribute freedoms and unfreedoms; no system of property can be described without qualification as a system of liberty. Someone may respond that the liberty to use what belongs to another is license not liberty, and so its exclusion should not really count against a private property system in the libertarian calculus. But the price of this maneuver is very high: not only does it commit the libertarian to a moralized conception of freedom of the sort that he usually shies away from (as in case of positive liberty), but it also means that liberty, so defined, can no longer be invoked to support property except in a question-begging way."