Can Corporate Social Responsibility (CSR) be consistent with the vision of traditional ethics and liberal economics? In this essay, the author answers affirmatively. Due to the mere fact of association, persons do not disconnect of their moral responsibility towards others. Regrettably, what is considered as CSR are the efforts of corporations in areas where they have little control: to save endangered animals, climate changes and so on. CSR should begin at home. In this work, the author proposes principles to properly measure the elaboration of a CSR index.