因明入正理論疏 1.9

1.9

First: 'science' (vidyā) is the general name of the five sciences. 'Cause' (hetu) is the specific name of one science. 'Entering the correct principle' (nyāyapraveśa) is the specific title of this treatise. The substance of cause has two types, namely the kāraka-hetu and the jñāpaka-hetu; each of the two has three varieties, as explained extensively below. Now, because it clarifies the meaning of this cause, it is called hetuvidyā. What is clarified is the cause, and that which clarifies is the teaching; because it is the science of the cause, it is named hetuvidyā, which is a tatpuruṣa compound. 'Entering' is penetrating and understanding. 'Correct principle' is the fundamental truth of all phenomena, their svabhāva and viśeṣa; as eras passed, understanding became dim, and the purports mostly sank into concealment. Although others made explanations, they were heterodox and inaccurate. Now this discusses the true phenomena, hence it is called correct principle. By clarifying these two causes, one enters into the understanding of the true nature of all phenomena; this is the entry into the correct principle, and also the hetuvidyā of entering the correct principle, both being tatpuruṣa compounds. The substance of science is the teaching, and hetuvidyā is itself the treatise, which is a karmadhāraya compound. It takes its name by distinguishing itself from other baskets [of scripture], without the fault of tautology.