华严宗
"Buddha-Nature and Prajna" 佛性與般若 (1977). This is Mou's main examination of Buddhist philosophy, written in two volumes. It upends usual Chinese recognition of Huayan school as most well-developed form of Buddhism and puts the Tiantai school in first place. Mou credits Tiantai with having the best concepts for understanding the authoritative Hong-Liu line of Confucianism.