維摩經玄疏 3.57

3.57

The reason why the doctrine of the four siddhāntas was clarified previously is precisely to state that the way our lineage comprehensively teaches the Dharma and expounds it differs in application from ancient and modern expositions. Previously, clarifying the three contemplations vertically refuted various dharmas in several tens of turns in brief. Next, below this, we clarify that which is expressed by the four teachings, establishing doctrines with reference to the various teachings, so that those who investigate and peruse it will know that the intention in refuting and establishing doctrines differs from those of the various meditation masters and Sanlun masters.