| Eagora

In this paper we will explain the Principle of Tolerance in Rudolf Carnap and its relation with some values and pragmatism that are supposed in this principle. The intention is to do a introductory summary to understand the bases of the Principle of Tolerance. This bases will end in pragmatic premises that include Ilustrated values in the exercise of science. This values will help us to choose between scientific systems (like mathematics in Newton or Einstein theories, or euclidean or non-euclidean geometrics) that are logical but they are choose because of their pragmatic use. This hipothesys will be according with the interpretation of A. W. Carus, and represents some now perspective of Rudolf Carnap.