Mathematical Understanding’ [論理の理解と数理の理解] (Geibun [芸文], Vol. 3, No. 9, September 1912). ‘Natural Sciences and the Study of History” [自然科学と歴史学] (Tetsugaku Zasshi [哲学雑誌]...

Method of Theoretical Physics and Its Topological Character [理論物理学新方法論提説——理論物理学の方法としての複素変数関数論の必然性とその位相学的性格] (Chikuma Shobō [筑摩書房], May 1955), reprinted in...