妙法蓮華經玄義 9.169

9.169

通明四悉檀者，秖破三顯一，得有四種益。何者？君子樂聞過，小人惡聞愆，欲知過必改，即為破執除病，歡喜奉行，即是世界也。若執住三，不能進道，破三從一，覺悟心生，善法增進，是名為人也。執三是病，說一為樂，是名對治也。若聞破三得見理，名第一義也。餘九種例爾。故知佛之善巧稱合機緣，皆令得益，四悉檀之力也（云云）。

Generally clarifying the four siddhāntas: simply refuting the three and revealing the One contains four kinds of benefit. Why? The exemplary person delights in hearing their faults, while the petty person hates hearing their blunders. Wishing to know their faults so they can correct them is breaking attachments and curing illness; joyfully practicing in accordance is the mundane [siddhānta]. If one is attached to abiding in the three, one cannot advance on the path; refuting the three to follow the One causes an awakened mind to arise, increasing wholesome dharmas, which is called the individual [siddhānta]. Attachment to the three is an illness; expounding the One is joy, which is called the therapeutic [siddhānta]. If upon hearing the refutation of the three one attains perception of the principle, it is called the paramārtha [siddhānta]. The remaining nine are also analogous to this. Therefore, know that the Buddha's skillfulness accords with capacities and conditions, causing all to receive benefit; this is the power of the four siddhāntas (and so forth).