This paper aims to reconstruct the theory of the self-choice in Kierkegaard´s Either / Or (Part Two). The ethical theory of the self-choice (1) contains a criticism of the self-understanding of the modern individual and (2) describes the pathologies of the individual life. Kierkegaard´s ethic pseudonymous distinguishes two incorrect models of self-relation, which involve a kind of existential self-reification: (1) self-creation and (2) self-knowledge.