During the war, they were participants in the symposiums on 'The World Historic Position and Japan' ('The World Historic Position and Japan' in the January 1942 issue, 'The Ethics and Historical Position of the East Asia Co-prosperity Sphere' in the April 1942 issue and 'The Philosophy of Total War' in the January 1943 issue), which appeared three times in "Chuo koron" magazine from 1942 to the following year and in these they had tried to determine what the ideological standing of the Greater East Asia War was from the point of view of the 'philosophy of world history.'
戦時下の1942年から翌年にかけて『中央公論』誌上で三回にわたり掲載され、大東亜戦争を「世界史の哲学」の立場から思想的に位置付けようと試みた「世界史的立場と日本」座談会（「世界史的立場と日本」1942年一月号、「東亜共栄圏の倫理性と歴史性」1942年四月号、「総力戦の哲学」1943年一月号）の出席者である。