This book contains the historically most important discussions of the philosophical foundations of left-libertarianism. It addresses questions such as: What exactly is self-ownership? What are the principle objections to it, and how powerful are they? What are the most plausible views about ownership of natural resourcesw? Do they imply joint ownership and collective-decision making? Do they allow private appropriation? How is the social fund generated from such payments to be spent? Is it to be divided equally? Is it to be used to purchase public goods? Is it to be devoted to promoting equality of opportunity? Includes selections from Groitus, Pufendorf, Locke, Paine, Mill, George, Walras and others.