List of Articles پیاژه Open Access Article Abstract Page Full-Text 1 - درآمدی بر ماهیّت اندیشه در زبان صوفیانه و ادب عرفانی سعید اکبری ابراهیم رحیمی زنگنه غلامرضا سالمیان Open Access Article Abstract Page Full-Text 2 - A comparative study of the levels of theoretical reason from the point of view of Avicenna and Jean Piaget's theory of cognitive development Goodarz Shateri Afarin Zangeneh Open Access Article Abstract Page Full-Text 3 - Studying the childish vision in poetry of Sohrab Sepehri,based on the theory of cognitive Development of Jean Piaget leila hormozani Masoud Pakdel