Around this period, he began to devote himself to the study of the classics of Japanese indigenous culture and literature; moreover, influenced by Sorai OGYU and Keichu, he decided that he would become a scholar of Japanese ancient culture and literature.
この頃から日本固有の古典学に身を入れるようになり、荻生徂徠や契沖に影響を受け、国学の道に入ることを志す。