According to the "The Ten Stories of Scouts" written by Michiharu MISHIMA, his last words left to MISHIMA on the day of his collapse was, "Listen carefully, those who die leaving money behind are lowly,"
三島通陽の『スカウト十話』によれば、新平が倒れる日に三島に残した言葉は「よく聞け、金を残して死ぬ者は下だ。