英語候補the eight doctrinal patriarchs who expounded the teachings (Nagarjuna, Nagabodhi, Vajrabodhi, Amoghavajra, Yi Xing, Huigo and Kukai) (in Shingon)
五時八教ごじはっきょう仏教division of the Buddha's 50-year teachings into five time periods and eight categories (theory of the Tendai sect)