The Cartesian paradigm was based on a belief in the certainty of scientific knowledge, which had been clearly stated by Descartes. In the new paradigm it is recognized that all scientific concepts and theories are limited and approximate. Science can never provide any complete and definitive understanding. Scientists do not deal with truth (in the sense of a precise correspondence between the description and the described phenomena); they deal with limited and approximated descriptions of reality.
"Examinai tudo. Retende o bem", I Tessalonicenses 5:21
Comentários