大般涅槃經集解 70.13

70.13

案僧亮曰：外道說涅槃法異，謂不從因生，所以難佛。若從因生，不應常也。僧宗曰：難意以因無常故，果不得獨常也。寶亮曰：此十邪師，蓋接化有緣，現迹歸降，以示大理源也。凡與外道論議往復之法，不得欵懷，要先於事中却令其心濡然，後言理也。此一外道，計二十五諦。言性常者，是已所計世性也。此下正破外道也。

Sengliang states: "The non-Buddhists explain the dharma of nirvāṇa differently, claiming it is not produced from causes, and therefore challenge the Buddha: 'If it is produced from causes, it should not be permanent.'" Sengzong states: "The intent of the objection is that because the cause is impermanent, the fruition cannot be uniquely permanent." Baoliang states: "These ten non-Buddhist teachers simply accommodated those with affinities to be converted, manifesting their submission in order to demonstrate the supreme source of principle. In general, regarding the method of back-and-forth debate with non-Buddhists, one must not directly open one's chest; one must first soften their minds within phenomenal matters, and only afterwards discuss the principle. This particular non-Buddhist posits twenty-five principles (tattvas). His statement that 'nature is permanent' refers to the primordial nature (prakṛti) that he posits. From here downward is the direct refutation of the non-Buddhists."