Sessai Nishiyama was a confucian scholar. He was also well versed in Japanese classic and waka poetry.
Sessai Nishiyama was born in 1735.
Sessai Nishiyama studied in Osaka under Ryiishii (Hakku) Oka and Rodo Naba.
Sessai Nishiyama first followed the teachings of Sorai Ogyii but later turned to the doctrine of Chutze. Returned to his native place and opened a private school, refusing the invitations to serve a number of daimyo. He once wrote to Ritsuzan Shibano and helped in the prohibition of Chinese doctrines other than Chutze's school. Also rebutted Norinaga Moto-ori's criticism of Confucianism. Although he wrote much, only a collection of his Chinese poems was published.