Imposing itself as an epicentral question of the social sphere, the notion of private property, treated by several philosophers, who, each in their own way gives it their own meaning, is confronted with the conflicts of interpretations among post Lockeans. To the question what is property, Proudhon answered, without hesitation, it is theft. For Macpherson, it is possessive individualism. And, ultimately, we define property as a precarious possession of natural goods, which implies alterity. Otherness being constitutive of the identity of every human being, because of the common origin of all, it calls for the ethics of interstate and intersubjective hospitality. This constitutes, for us, an innovation in the understanding of the concept of property in Locke

Keywords : Ethics, Hospitality, Ownership