妙法蓮華經玄義 10.111

10.111

二、如良醫，有一祕方具十二藥，三種最貴，善占病相，盈縮所宜，終不乖候，謬有所治。佛亦如是，圓方妙治，具十二部，無問、廣記，最為甚深。菩薩智利，具足全服，二乘病重，以九為劑。此若不縮，於病無益。於不縮為乳，於縮為酪。此取相生，次第為譬，不取濃淡淺深。

Second, it is like a skilled physician who has a secret recipe containing twelve medicines, three of which are the most precious; skillfully discerning the symptoms of the disease, adjusting and dosing what is appropriate, he never goes against the proper seasons or mistakenly treats anything. The Buddha is also like this: his marvelous cure of the perfect prescription contains the twelve divisions; the unasked discourses and extensive predictions are the most profound. Bodhisattvas of keen wisdom take the complete dose in full; for the severe illness of the two vehicles, nine are used as the prescription. If this were not reduced, it would bring no benefit to the illness. Where unreduced, it is milk; where reduced, it is curd. This uses the sequential arising as an analogy, not the richness, thinness, shallowness, or depth.