妙法蓮華經玄義 2.178

2.178

又、束判麁妙：前二教雖有隨智等，一向是隨情，說他意語故，故名為麁。別入通去，雖有隨情等，一向束為情智，說自、他意語故，亦麁亦妙。圓二諦雖有隨情等，一向是隨智說，佛自意語故，故稱為妙。

Furthermore, synthesizing the evaluation of coarse and subtle: although the former two teachings contain [aspects of] following wisdom, they are entirely [categorized as] following feelings, because they speak words according to another's mind; hence they are termed coarse. From entering the shared from the distinctive onward, although they contain [aspects of] following feelings, they are synthesized entirely as feelings-and-wisdom, because they speak words according to both one's own and another's mind; hence they are both coarse and subtle. Although the perfect two truths contain [aspects of] following feelings, they are expounded entirely in accordance with wisdom, because they are words according to the Buddha's own mind; hence they are called subtle.