Starting from the vision of F. Nietzsche on the utilitarian man suffering from daltonism and trying to shape the causes of modern moral crisis with some resentful aspects (Max Scheler), we believe that a common constant, subsidiary to all ethical guidelines is the most important component of the self, namely the moral conscience (J. Piaget, K. Jung). The critique brought to pragmatism promoted by the utilitarian approach (J. Bentham, J. Stuart Mill) in contrast with that typology of resentment (Max Scheler) highlights the relative interpretations and the lack of a device of ethical knowledge. In our view, relativism of these ethical interpretations is that, the three dimensions of analysis are disregarded: the concepts of equality, inequality and otherness. (N. Cusanus, De docta Ignorantia). Moreover, the law of homogeneity and the law of specification (Arthur Schopenhauer) support the concept of moral conscience as a unit generating unity and coexisting in us.