Nakae was a feudal retainer who lived during the Tokugawa shogunate. He taught that the highest virtue was filial piety (kō), and acted upon this, giving up his official post in 1634 in order to return to his home in Takashima, Ōmi to care of his mother. He distinguished, however, between sho-kō and dai-kō: lesser and greater filial piety. Sho-kō involves the normal care owed by children to their parents; dai-kō involves the notion that our human parents are themselves the children of the divine parents — thus, if one's parents are wrong, then one should encourage them to return to virtue.
He was unusual in believing that his teaching would be useful to women as well as men. While accepting the then standard view of women as usually lacking such virtues as compassion and honesty, he argued: "if a wife's disposition is healthy and pious, obedient, sympathetic and honest, then ... every member of her family will be at peace and the entire household in perfect order."
Nakae originally followed the teachings of the Chinese neo-Confucian philosopher Zhu Xi, but eventually became more influenced by Wang Yangming (1472–1529), who argued for the primacy of human intuition or conscience over intellect: moral improvement arises out of conscience-based action (compare 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".
- 1650 -- Dialogue with the elder (Okina mondō).
- 藤樹遺稿 (1795)
- 翁問答 (1831)
- 藤樹全書: 中江藤樹先生遺稿 (1893)
- 中江藤樹文集 (1914)
- 孝經五種 (1925)
- Nakae Tōju sensei zenshu (1928)
- 鑑草; 附・春風; 陰騭 (1939)
- 藤樹先生全集 (1940)
- 中江藤樹・熊沢蕃山集 (1966)
- 中江藤樹 (1974)
- 中江藤樹・熊沢蕃山 (1976)
- Bodart-Bailey, Beatrice. (1997). "Confucianism in Japan" in Companion Encyclopedia of Asian Philosophy, p. 743 citing De Bary, William. (1981). Neo-Confucian Orthodoxy and the Learning of the Mind-and-Heart, p. 372.
- Bodart-Bailey, p. 741.
- WorldCat Identities: 中江藤樹 1608-1648
- Shirane, Haruo. (2006). Early Modern Japanese Literature, 354-358.
- Bodart-Bailey, Beatrice. (1997). "Confucianism in Japan" in Companion Encyclopedia of Asian Philosophy (Brian Carr and Indira Mahalingam, eds). London: Routledge. ISBN 9780415035354; OCLC 35049601
- de Bary, William Theodore. (1981). Neo-Confucian Orthodoxy and the Learning of the Mind-and-Heart. New York: Columbia University Press. ISBN 9780231052283; OCLC 7461831
- Nauman, St. Elmo. (1979). Dictionary of Asian Philosophies. London: Routledge. ISBN 9780710002136; OCLC 470939937
- Shirane, Haruo. (2002). Early Modern Japanese Literature. New York: Columbia University Press. ISBN 9780231109901; ISBN 9780231109918; OCLC 48084101
- Nakae Tōju Britannica Concise Encyclopedia 2006. Retrieved: March 26, 2006.
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- Intellectual Currents in Tokugawa Japan — by Jason Chan; includes extracts from Toju's writings
- Takashima City web site: Toju Nakae and Toju shoin national historical site
- Toju's hometown in Japan — set of (stereo) photographs
- East Asia Institute, University of Cambridge: Further reading/bibliography