is one of the most influential Japanese philosophers, who taught philosophy at Chiba University and later at Nihon University. His main research fields are metaphysics and metaethics. His books include "Philosophy for Kids!" and "A Transfer Student and Black Jack: A Seminar on Solipsity," which interpret solipsism from a unique metaphysical point of view. Nagai's philosophy has been heavily influenced by Wittgenstein, however, his philosophy successfully elucidates an important aspect of solipsism which Wittgenstein could not fully express in his philosophical works. Nagai stresses that the solipsistic subject (such as "I!") can be pointed to by using the public language, but the trial of this pointing ought to be failed every time because of the unique function of our public language. He calls this characteristic "solipsity".
Books (Japanese, incomplete)
- A Metaphysics of I!,ãÂÂãÂÂç§ÂãÂÂã®ã¡ã¿ãÂÂã£ã¸ãÂÂã¯ã¹ã Keiso Shobo, 1986.
- The Attitude Towards the Soul,ãÂÂãÂÂéÂÂãÂÂã«対ãÂÂãÂÂæÂ
Â度ã Keiso Shobo, 1991.
- An Introduction to Wittgenstein,ãÂÂã¦ã£ãÂÂã²ã³ã·ãÂ¥ã¿ã¤ã³åÂ
¥éÂÂã Chikuma Shobo, 1995.
- Philosophy for Kids!,ãÂÂãÂÂÃ¥ÂÂã©ãÂÂãÂÂã®ãÂÂãÂÂã®å²å¦ã Kodansha, 1996.
- The Philosophy of Ressentiment,ãÂÂã«ãµã³ãÂÂãÂÂã³ã®å²å¦ã Kawade Shobo, 1997.
- The Incomparability of the Existence of I!,ãÂÂãÂÂç§ÂãÂÂã®åÂÂå¨ã®æ¯Âé¡ÂãªãÂÂã Keiso Shobo, 1998.
- This Is Nietzsche,ãÂÂãÂÂãÂÂãÂÂãÂÂã¼ãÂÂã§ã ã Kodansha, 1998.
- Manga Philosophizes,ãÂÂãÂÂã³ã‹¯å²å¦ãÂÂãÂÂã Kodansha, 2000.
- A Transfer Student and Black Jack: A Seminar on Solipsity,ãÂÂ転校çÂÂã¨ãÂÂã©ãÂÂã¯ãÂȋ¸ã£ãÂÂã¯âÂÂâÂÂçάæÂ§ãÂÂãÂÂãÂÂãÂÂãÂȋÂÂãÂÂã¼ã Iwanami Shoten, 2001.
- What Is Ethics?,ãÂÂå«çÂÂã¨ã¯ä½ÂãÂÂâÂÂâÂÂç«ã®ã¢ã¤ã³ã¸ãÂÂãÂÂã®æÂÂæÂ¦ã Sangyo Tosho, 2002.
- I, Now, and God: Philosophy of the Opening,ãÂÂç§Âã»ä»ÂãÂȋÂÂãÂÂã¦ç¥ÂâÂÂâÂÂéÂÂé¢ã®å²å¦ã Kodansha, 2004.
- Why Isn't Consciousness Real?, ãÂÂãªãÂÂæÂÂèÂÂã¯å®Âå¨ãÂÂãªãÂÂã®ãÂÂãÂÂIwanami Shoten, 2007.
- The Philosophy of Kitaro Nishida,ãÂÂ西ç°幾å¤ÂéÂÂâÂÂâÂÂãÂÂ絶対ç¡ãÂÂã¨ã¯ä½ÂãÂÂã NHK, 2007.
- Wittgenstein's Misdiagnosis,ãÂÂã´ã£ãÂÂã²ã³ã·ãÂ¥ã¿ã¤ã³ã®誤診âÂÂãÂÂéÂÂè²æÂ‹ÂÂãÂÂæÂÂãÂÂå´©ãÂÂã Nakanishiya Shuppan, 2012.
- A Secret Battle of Philosophy,ãÂÂå²å¦ã®å¯ÂãÂÂãªéÂÂãÂÂã Pneuma Sha, 2013.
- A Lively Murmur of Philosophy,ãÂÂå²å¦ã®è³ÂãÂÂãÂÂãªåÂÂãÂÂã Pneuma Sha, 2013.
- Uncle Tetsu and Manabu,ãÂÂå²ãÂÂãÂÂãÂÂãÂÂã¨å¦ãÂÂãÂÂã Nihon-Keizai-Shinbun Shuppan Sha, 2014.
- Being and time - philosophical investigations 1, ãÂÂÃ¥ÂÂå¨ã¨æÂÂé å²å¦æÂ¢æ±Â1ã Bungei Shunju 2016
- The "Solipsitic" Structure of Being - philosophical investigations 2, ãÂÂä¸ÂçÂÂã®çάè«ÂçÂÂÃ¥ÂÂ卿§Âé å²å¦æÂ¢ç©¶2ã Shunjusha 2018
Selected English papers
- The Opening: A Philosophy of Actuality (1) Philosophia Osaka No. 2, 2007:45-61 PDF
- The Opening: A Philosophy of Actuality (2) Philosophia Osaka No. 3, 2008:1-24 PDF
- The Opening: A Philosophy of Actuality (3) Philosophia Osaka No. 4, 2009:1-29 PDF
- The Opening: A Philosophy of Actuality (4) Philosophia Osaka No. 5, 2010:23-40 PDF
- Why Isn't Consciousness Real? (1) Philosophia Osaka No. 6, 2011:41-61 PDF
- Why Isn't Consciousness Real? (2) Philosophia Osaka No. 7, 2012:47-63 PDF
- Why Isn't Consciousness Real? (3) Philosophia Osaka No. 8, 2013:37-51 PDF
- Why Isn't Consciousness Real? (4) Philosophia Osaka No. 9, 2014:41-60 PDF
References
External links