弘明集 6.18

6.18

正曰。夫佛開三世故圓應無窮。老止生形則教極澆淳。所以在形之教不議殊生。圓應之化爰盡物類。是周孔老莊誠帝王之師。而非前說之。證既開塞異。教又違符合之驗矣。

Rectification: The Buddha opens the three times, and therefore his perfect response is inexhaustible; Laozi stops at the living corporeal form, and therefore his teaching exhausts itself in the shallow and the pure. Hence, teachings concerning the corporeal form do not discuss distinct rebirths, while the transformation of perfect response exhausts all categories of living beings. Thus, the Duke of Zhou, Confucius, Laozi, and Zhuangzi were truly teachers of emperors and kings, but they are not proof for your former statement. Since opening and blocking differ, their teachings also violate the verification of tallying together.