Kaie

...He decided to escape the crisis by treating even love as a mental phenomenon and managing everything mathematically to make himself transparent and rigid. After 1894, he settled in Paris and began to take notes on the observation and analysis of mental phenomena (a project he continued throughout his life, resulting in the 30,000-page Cahiers, which may be considered his greatest work). He also wrote "Introduction to the Method of Leonardo da Vinci" (1895) and the novel "La soirée with Monsieur Teste" (1896), both of which were about his ideal image of himself, but he gradually drifted away from literature and became absorbed in his own thoughts. ...

*Some of the terminology explanations that mention "Kaie" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

…恋愛すら心的現象と見なしそのいっさいを数学的に管理することで自己を透明で剛直な存在へと仕立てあげ危機から脱出しようと決意。1894年以後パリに定住し心的現象の観察と分析のため覚書を取り始める(これは生涯つづけられ，彼の最高の作品とも見なしうる3万ページもの《カイエCahiers》となる)。また自己の理想像をめぐって《レオナルド･ダ･ビンチの方法への序説》(1895)，小説《テスト氏との一夜La soirée avec Monsieur Teste》(1896)を書くが，しだいに文学から遠ざかり自分だけのための思索にふける。…

※「《カイエ》」について言及している用語解説の一部を掲載しています。

出典｜株式会社平凡社世界大百科事典 第２版について | 情報