瑜伽論記 5.219

5.219

教導論者，成於久學，基云：順正論是戒學善緣，教導論是定惠善緣，最後二論應修習者順正理故，中間二論應遠離者，勿耽惡事及起惡言而興論故，為欲斷除興言亦爾，亦則是彼修習攝，初二種論應分別者，性通善惡應修斷故。

Instructional discourse brings to completion those who have studied long. Ji says: Discourse that accords with rectitude is a good condition for the training in morality; instructional discourse is a good condition for the training in concentration and wisdom. The final two discourses should be cultivated because they accord with correct principle; the middle two discourses should be avoided because one should not engage in debate out of indulgence in bad deeds or uttering bad words. Uttering words to eradicate them is also like this, and is likewise subsumed under cultivation. The first two kinds of discourse should be distinguished, because their nature extends to both good and bad, and thus they should be cultivated or abandoned.