妙法蓮華經玄義 4.43

4.43

無量四諦慧者，《大經》云：「佛說四諦，若攝法盡，則不應言：所不說者，如十方土。攝法不盡，應有五諦。」佛言：「四諦攝盡，無第五諦。但苦有無量相，集滅道等皆有無量相。我於彼經，竟不說之。」若是空者，空尚無空，云何無量？當知出假分別之慧也。此慧遍知十法界假、實差別，名苦諦慧；遍知五住煩惱不同，名集諦慧；遍解半、滿、正、助等行，名道諦慧；解半滿十六門，諸滅門不同，是滅諦慧。二乘但服四諦藥，治見、思病，自出生死，於分別則閑。菩薩作大醫王，須解診種種脈，識種種病，精種種藥，得種種差。約此起種種慈悲，行種種行，諸度道品，成種種眾生，淨種種佛土，廣說如《止觀》（云云）。是名無量四諦慧。

Regarding the wisdom of the four noble truths of the immeasurable: the *Mahāparinirvāṇa-sūtra* states, 'If the Buddha's preaching of the four truths encompasses all phenomena completely, then one should not say: what has not been preached is like the earth in the ten directions. If it does not encompass all phenomena, there should be a fifth truth.' The Buddha said: 'The four truths encompass all completely; there is no fifth truth. It is simply that suffering has immeasurable aspects, and origination, cessation, and the path likewise all have immeasurable aspects. In that sūtra, I ultimately did not preach them.' If it is emptiness, emptiness does not even have emptiness, so how could there be the immeasurable? You should know that this is the wisdom that emerges from emptiness into the provisional to make discriminations. This wisdom completely knows the differences between the provisional and real across the ten dharma realms, which is called the wisdom of the truth of suffering; it completely knows the differences among the five entrenchments of affliction, which is called the wisdom of the truth of origination; it completely understands half and full, primary and auxiliary practices, which is called the wisdom of the truth of the path; and it understands the half and full sixteen gates and the differences among the various gates of cessation, which is the wisdom of the truth of cessation. The two vehicles merely take the medicine of the four truths to cure the disease of views and thoughts, escaping saṃsāra on their own, being unskilled in discriminations. The bodhisattva acts as a great king of physicians, needing to understand how to diagnose diverse pulses, recognize diverse illnesses, master diverse medicines, and effect diverse cures. Based on this, they generate diverse benevolence and compassion, practice diverse practices, cultivate the perfections and path factors, bring diverse sentient beings to fruition, and purify diverse buddha lands, as explained extensively in the *Great Cessation and Contemplation* (and so on). This is called the wisdom of the four noble truths of the immeasurable.