This book presents argumentation for an evolutionary continuity between human persons and cyborg persons, based on the thought of Joseph Margolis. Relying on concepts of cultural realism and post-Darwinism, Aleksandra Łukaszewicz Alcaraz redefines the notion of the person, rather than a human, and discusses the various issues of human body enhancement and online implants transforming modes of perception, cognition, and communication. She argues that new kinds of embodiment should not make acquiring the status of the person impossible, and different kinds of embodiments may be accepted socially and culturally. She proposes we consider ethical problems of agency and responsibility, critically approaching vitalist posthuman ethics, and rethinking the metaphysical standing of normativity, to create space for possible cyborgean ethics that may be executed in an Extended Republic of Humanity.