Tsunayoshi often called Nobuatsu HAYASHI to discuss the Confucian Classics, gave lectures on The Four Books of Confucianism and the "I Ching" (The Book of Changes) to retainers in the government, and built Yushima Daiseido as the center of scholarship.
綱吉は林信篤をしばしば召しては経書の討論を行い、また四書や易経を幕臣に講義したほか、学問の中心地として湯島大聖堂を建立した。