He is said to have read and understood Japanese and Chinese books from childhood and been good at mathematics, and a story has it that when he was given a question, he solved it in the cemetery of Zuiko-ji Temple (Maizuru City).
幼児から和漢書を読み解き、特に数学に堪能で問題を与えられると瑞光寺(舞鶴市)の墓地で解いたという。