法華經義記 2.55

2.55

次明二智名義有通有別。第三方便智即有智慧義，此方便智即實智義，實智即有方便智義。何以知之？智慧本以鑒照為義，然方便智若不洞鑒三乘人根性者，云何得說法化物？故知方便智舉體是鑒照，即是智慧之義。此方便智亦即是實智義者，實智本以無虛審諦之義，我此方便智亦即是實有，既是實有，方便智即是實義。復言實智即是方便智者，然方便者以善巧為義，此實智說一因一果之理，言天下深妙幽微難知之理。下經文歎實智言「諸佛智慧甚深無量」，此一因一果是實智所照之境，此境縱望無底，即是甚深；橫論無際，即是無量。然深廣難知之理而實智能照，此即是善巧之義，即方便。

Next, the names and meanings of the two knowledges are explained as having shared and distinct [aspects]. Third, expedient knowledge contains the meaning of wisdom, and this expedient knowledge is itself the meaning of real knowledge; real knowledge also contains the meaning of expedient knowledge. How is this known? Wisdom fundamentally takes illuminating reflection as its meaning. If expedient knowledge did not thoroughly illuminate the capacities and natures of the persons of the three vehicles, how could it expound the Dharma to transform beings? Therefore we know that expedient knowledge in its entirety is illuminating reflection, which is precisely the meaning of wisdom. That this expedient knowledge is also the meaning of real knowledge means: real knowledge fundamentally takes the meaning of being non-delusive and accurately discerning; this expedient knowledge of mine is also truly existent, and since it is truly existent, expedient knowledge is itself the real meaning. Again, as for saying that real knowledge is itself expedient knowledge: skilful means takes dexterity as its meaning; this real knowledge expounds the principle of one cause and one fruition, declaring the profound, wonderful, subtle, and hard-to-know principle under heaven. The sūtra text below praises real knowledge, saying: 'The wisdom of the Buddhas is extremely profound and measureless.' This one cause and one fruition is the object illuminated by real knowledge. Looking vertically into this object, it is bottomless, which is 'extremely profound'; examining it horizontally, it is limitless, which is 'measureless.' That real knowledge can illuminate such a profound, vast, and hard-to-know principle is precisely the meaning of dexterity, which is skilful means.