金剛經纂要刊定記 3.80

3.80

疏六地位中。謂由下。釋。以二邊邪僻置之不論，中道乃是大菩提路，故於此中分立地位。如往帝都有三路異，兩邊皆非中道即正，正路之中方可論於遠近遲速等也。法中亦爾，故經云：「一切賢聖皆以無為法而有差別。」

In the Commentary, regarding "6. The stages": "meaning by..." and below is the explanation. Leaving the deviant bias of the two extremes aside without discussion, the Middle Way is indeed the great path to bodhi; therefore within this the stages are distinguished and established. For instance, in traveling to the imperial capital, there are differences among three roads: the two sides are both wrong, whereas the middle path is the correct one; only within the correct road can one discuss distance, proximity, slowness, speed, and so on. It is also like this with respect to phenomena; therefore the sūtra says: "All worthies and nobles are distinguished by means of asaṃskṛta phenomena."