This chapter traces the connection between Aristotle’s conception of property, his insistence on private ownership, and his eugenics legislation. For Aristotle, the ownership of property arises from a natal scene: the first “possession” is the sustenance one receives upon birth, which Aristotle explicitly casts not as a product of maternal labor but as a gift of nature. In so doing, the chapter argues, he both sets the stage for a hierarchy of life justified by appeal to the “natural” and sows the seeds for the very commodification of life that he will elsewhere diagnose as a function of the moral failure to discern how to live well and the evils of interest. This is especially clear in his account of the natural slave, a being whose bios has its end not in its own living but in the living of another.