was a writer and Confucian scholar of early Edo period Japan popularly known as "the Sage of Ōmi". Biography Nakae was the eldest son of a farmer in Ōmi Province. When he was nine years old, he was adopted by his grandfather, Yoshinaga Tokuzaemon, who was a samurai with a stipend of 150 koku serving Yonago Domain in Hoki Province. In 1617, the daimyō of Yonago, Kato Sadayasu was transferred to Ōzu Domain in Iyo Province and Nakae relocated to Shikoku with his grandparents. In 1622, his grandfather died and Nakae inherited a position with a stipend of 100 koku. However, in 1634, at the age of 27, he left his position without officially resigning due to filial piety for his mother and health reasons. After hiding for a time in Kyoto, he returned to his home village of Ogawa in Ōmi (currently part of Takashima, Shiga, where he opened a private academy for Confucian studies. This was the . The Tōju Shoin takes its name from a giant wisteria which grew behind Nakae's house. His students nicknamed him Mr Wisteria Tree, or "Tōju" in the kanbun pronunciation of its kanji. In 1637, Nakae married Hisashi, the daughter of a retainer of Ise-Kameyama Domain. Nakae gradually became obsessed with the Cheng–Zhu school, but was also highly influenced by Yangmingism, which argued for the primacy of human intuition or conscience over intellect: moral improvement arises out of conscience-based action (similar to Aristotle's ethics). Nakae added a more religious aspect to Wang's "School of Intuition of Mind", calling the human conscience the "divine light of heaven". Nakae's works also supplied his followers (such as Kumazawa Banzan [1619–1691]) with "the moral foundation for political action". His wife died in 1846 and the following year he remarried to Kuri, the daughter of a retainer of Ōmizo Domain. In early 1848, he rebuilt the Tōju Shoin on a larger scale; however, he died less than half a year later at the age of 41. His grave is at the temple of Tamarin-ji in Takashima. The Tōju Shoin building was destroyed by a large fire in 1880 along with 34 nearby farmhouses. The current structure is a reconstruction built in 1882, but on a smaller scale than the original. It was designated a National Historic Site in 1922, with the area under protection expanded in 2007. It is about a 15-minute walk from Adogawa Station on