法華玄論 10.71

10.71

Answer: As stated previously, three faculties are strong in function and three faculties are weak in function, so their amounts differ. As for the three faculties being strong in function, the mental faculty is strong because it is the basis of the five dharma masters. The tongue is also endowed with the five dharma masters, for due to the tongue one is able to read and preach. Moreover, due to another's tongue one can be instructed, enabling one to receive, uphold, and copy [the sūtra]; therefore, it is fully equipped with the five dharma masters.