Private property is (as the idea that land is subject to ownership and control) the foundation of modern society.
Private property is key in establishing business and opening up the possibility for capital markets because as long as land was private, it could be used as collateral with banking, and credit institutions.
Private property is a system whereby each tries to establish over the other an alien power, so as thereby to find satisfaction of his own selfish need. The increase in the quantity of objects is therefore accompanied by an extension of the realm of the alien powers to which man is subjected, and every new product represents a new potentiality of mutual swindling and mutual plundering.
Private property is a threat to individualism in that, by having made gain, not growth its aim, man has come to think the important thing is to have, and has forgotten that the important thing is to be.
Private property is, along with well-being, the seat of the justification of the government's authorty. When such protection is no longer present, the social compact can be dissolved.
Private property is at the root of the establishment of government, which fossilizes the very inequalities that private property has produced.
Private property is justified in that it is mixing one's labor with external natural materials, thus internalizing them and affording those materials the same rights as one's body itself.
Private property is created when a person mixes his labor with the raw materials of nature -(I.E when he makes a piece of land into farmland).