Some philosophers have even suggested that Nietzsche's philosophy cannot be understood or analyzed apart from his remarks on women. They discuss the fact that Nietzsche's work has been useful in the development of some feminist theory but ultimately conclude "While Nietzsche challenges traditional hierarchies between mind and body, reason and irrationality, nature and culture, truth and fiction - hierarchies that have been used to degrade and exclude women - his remarks about women and his use of feminine and maternal metaphors throughout his writings confound attempts simply to proclaim Nietzsche a champion of feminism or women."