妙法蓮華經玄義 9.45

9.45

Furthermore, there are teachings that carry both a crude facilitating and a crude facilitated, such as the curds teaching. Teachings that carry neither a crude facilitating nor a crude facilitated are the milk teaching. Teachings that carry a crude facilitated but not a crude facilitating are the clarified butter teaching. Teachings that carry a crude facilitating but not a crude facilitated are the perfect teaching connecting the shared, and connecting the distinctive, as are the various gates in the *Nirvāṇa Sūtra*.