In this work, the authors aim at rescuing the contributions of the ethics of communication by K. O. Apel and the ethics of liberation by E. Dussel to the paradigm of such a discipline. In the ethics of communication, the “other” becomes the quintessential element which makes the dialogue possible. The idea of equality becomes communicative. Nobody can be excluded a priori from the argumentative process, which legitimates the moral norms if their consequences affect it directly or indirectly. The ethics of liberation attempts at thinking the issues which have been signaled from the perspective which includes the vision of the oppressed and / or the excluded from every wholeness; including the communicative one. The other one does not exist as being “free,” rather he or she is in a continuous process of liberation from wholeness, with an aspiration in an absolute sense.