The nature of Buddhism, as I understand it, is to believe that we are all pure and radiant at our core. And yet we see around us so much evidence that people are not acting from a place of purity and radiance.
Buddha himself taught different teachings to different people under different circumstances. For some people, there are beliefs based on a Creator. For others, no Creator. The only "definitive truth" for Buddhism is the absolute negation of any one truth as the Definitive Truth.