起信論疏筆削記 2.34

2.34

又此五教與天台化法四教相望，但開合有異，而大況是同。彼則開前合後，此則開後合前。四教者，謂藏、通、別、圓也。且如此中，初小乘教，即彼藏教。第二始教，此有二類，一始教，但說諸法皆空，即彼通教也；二分教，但說一切法相，即別教也。第三終教，明如來藏隨緣成諸染淨，緣起無性，一切皆如，即彼圓中雙照義也。第四頓教，唯辨真性，即彼圓中雙遮義也。第五圓教，明性相俱融，即彼圓中遮照同時義。以此三教所詮唯是一心，具一切法，即彼圓教不思議中道也。故此三教皆屬圓收。此即合彼通別為一始教，開彼圓教為終、頓、圓三；彼即開此始教為通、別二，合此終等為一圓教。雖開合有異，而法無異也。然彼更約化儀論四，約時論五，廣說如彼。

Furthermore, when these five teachings are compared with the four teachings of conversion methods in Tiantai, there are only differences in division and combination, while the general outline is identical. That [system] divides the former and combines the latter, whereas this [system] divides the latter and combines the former. The four teachings are the Piṭaka, Common, Separate, and Round [teachings]. Taking the present [system]: first, the Hīnayāna teaching is that Piṭaka teaching. Second, the initial teaching has two categories: one, the initial teaching, which only expounds that all dharmas are empty, is that Common teaching; two, the differentiated teaching, which only expounds all marks of dharmas, is that Separate teaching. Third, the final teaching, which clarifies that the tathāgatagarbha accords with conditions to form all defilement and purity, and that dependent arising lacks [independent] nature so all is suchness, is the meaning of "simultaneous illumination" within their Round [teaching]. Fourth, the sudden teaching, which solely discerns the true nature, is the meaning of "simultaneous negation" within their Round [teaching]. Fifth, the round teaching, which clarifies that nature and marks are mutually interfused, is the meaning of "simultaneous negation and illumination" within their Round [teaching]. Because what is expressed by these three teachings is solely the One Mind endowed with all dharmas, they correspond to the inconceivable Middle Way of their Round teaching. Therefore, these three teachings are all subsumed under their Round [teaching]. This combines their Common and Separate into a single initial teaching, and divides their Round teaching into three: the final, sudden, and round; while they divide this initial teaching into two—Common and Separate—and combine this final [teaching] and the rest into a single Round teaching. Although division and combination differ, the dharmas are not different. However, they also discuss four [teachings] according to the ritual of conversion, and five [periods] according to time, as fully explained there.