大方廣佛華嚴經隨疏演義鈔 44.7

44.7

Regarding the commentary's statement, "First contemplating because of delusion regarding the four noble truths," and so forth: yet, regarding the two kinds of ignorance being deluded about the principle of the four noble truths, this is delusion regarding the ultimate truth. Ignorance belongs to the second tier of the two truths among the four tiers of two truths. Here, we take the ultimate truth within the third tier, namely tathatā; therefore, it differs from the four [truths], because the four noble truths are merely conventional.