Revista Trágica: Estudos sobre Nietzsche – 2º semestre 2010 – Vol.3 – nº2 Complexity of effectivity, reality and perspectivism Roberto Barros∗ Abstract: The following exposition aims to consider aspects of the perspectivist character that Nietzsche identifies in philosophy and in science. From the philosopher’s distance of the metaphysical rationalist points of view and the insertion of the psychological perspective in the cognitive process analysis as well as the scientific results, the philosopher can not only analyze but also mull over the limits of the human cognitive apparatus as a medium of interpretation and representation of the reality (Realität). From this results not only a new consideration of it, taken as a factor, but not as a product of the human representational capacity (Wirklichkeit), but also a necessary reconsideration of the human capacity to investigate her. Keywords: effectivity; reality; perspectivism; reason; conscience; moral. ∗ Doutor em Filosofia pela Universidade Técnica de Berlim (Alemanha). Professor da Faculdade de Filosofia da Universidade Federal do Pará. Revista Trágica: Estudos sobre Nietzsche – Vol.3 – nº2