In this paper I evaluate two opposed positions concerning relativism and conceptual schemes: (i) the incommensurability of scientific theories proposed by Thomas Kuhn and Paul Feyerabend and (ii) Donald Davidson’s attack to the notion of conceptual scheme. In the first place, I criticize the main arguments which support both positions and, in the second place, I propose an alternative approach which attempt to make sense of substantial contrasts between systems of concepts through translatability failures.
