section_path: Academic study/Theories/Cultural system
section_name: Cultural system
paragraph_text: Cultural system
  
  While religion is difficult to define, one standard model of religion, used in religious studies courses, was proposed by Clifford Geertz, who simply called it a "cultural system". A critique of Geertz's model by Talal Asad categorized religion as "an anthropological category". Richard Niebuhr's (1894–1962) five-fold classification of the relationship between Christ and culture, however, indicates that religion and culture can be seen as two separate systems, though with some interplay.