釋鑑稽古略續集 3.72

3.72

甲寅九年。曹端。字正夫。篤尚理學。著述甚夥。稱月川先生。

In the jiayin ninth year, Cao Duan, whose courtesy name was Zhengfu, was deeply devoted to Neo-Confucianism and authored numerous works; he was known as Master Yuechuan.