法華經義記 2.72

2.72

問言：「雖復寄言歎二智，明此二智非是近情所測、拙言可及，且止此唱，故下文言『唯有諸佛乃能知之』，非小聖所及。寄絕言中亦得生大眾疑、動執之端，時眾言如來何故從定出自歎二智甚深？仍罷有何所以？是故言歎方便智為動執之端，歎實智為生疑之端。」問者言：「汝既言絕言，何故由道歎耶？」解釋者言：「若默住不道絕言時，時眾那得知此二智應絕言耶？」

The question is asked: "Although he resorts to words to praise the two knowledges, clarifying that these two knowledges are not what common sentiments can fathom, nor what clumsy words can reach, he for the time being stops this proclamation; hence the text below says: 'Only the Buddhas can know it,' which is beyond the reach of lesser sages. In resorting to the beyond-words, could he also produce doubts in the great assembly and start the stirring of attachments? The assembly at that time said: 'For what reason did the Tathāgata, arising from samādhi, praise his own two knowledges as profoundly deep? Yet he ceases—for what reason?' Therefore it is said that praising the skilful knowledge is the starting point for stirring attachments, and praising the real knowledge is the starting point for generating doubt." The questioner asks: "Since you say it is beyond words, why does he still speak and praise it?" The commentator says: "If he remained silent and did not speak of the beyond-words, how could the assembly at that time know that these two knowledges should be beyond words?"