This article examines Nozick's claim (in Anarchy, State and Utopia) to have shown that a commitment to individual liberties requires acceptance of full capitalist property rights. The main gap in Nozick's argument is that he fails to show how individuals can become entitled to full control over previously unheld resources. Nozick draws on Locke's view that title is acquired by ?mixing one's labour?. But he excises certain (dubious) premisses on which Locke's theory relies and provides no alternative grounds for thinking (...) that the labourer is entitled to full control over his product. (shrink)