二諦義 1.23

1.23

問：何意如來說法不出二諦耶？解云：二諦即是四悉檀，三悉檀即是世諦、第一義悉檀即是第一義諦。四悉檀攝十二部經、攝八萬四千法藏攝法既盡，二諦攝法亦盡。此就不盡盡明義也。以二諦攝法盡故，如來就二諦說法也。

Question: For what reason does the Tathāgata's expounding of the Dharma not go beyond the two truths? It is explained: The two truths are precisely the four siddhāntas: the three siddhāntas are the conventional truth, and the ultimate-meaning siddhānta is the ultimate truth. Since the four siddhāntas subsume the twelvefold scriptures and subsume the eighty-four thousand Dharma stores so that they subsume all phenomena without remainder, the two truths also subsume all phenomena without remainder. This explains the doctrine in terms of exhaustive subsumption. Because the two truths subsume all phenomena exhaustively, the Tathāgata expounds the Dharma in terms of the two truths.