From among the traditional discussions on Confucianism, Shushigaku took Mencius' 'Theory of Innate Goodness' and held it in high esteem, which led to the debate over "innateness" and "goodness".
特に朱子学が従来の儒学議論の中から、孟子の「性善説」を取り出し、極端に尊崇したことから、「性」「善」の内容をめぐって議論を呼ぶことになった。