Abstract
The article deals with the structure and function of perceptual judgment in the perception theories of the Buddhist Diṅṅāga and the Vaiśeṣika Praśastapāda. I show their indebtedness to the Vyākaraṇa tradition and particularly to Patañjali. Following Shōryū Katsura’s idea that the status of perceptual judgment with regard to the Buddhist system of instruments of valid cognition was first established by Dharmakīrti, I argue that Diṅṅāga’s examples in his definition of perception in Pramāṇasamuccaya-vṛtti I,3d could be considered as perceptual judgments in the sense of Charles Peirce. After the examination of Diṅṅāga’s and Praśastapāda’s examples of perceptual judgments, I come to the conclusion that Diṅṅāga, as a nominalist, sees in them an expression of ordinary linguistic behaviour shaped by convention and grammatical tradition, while Praśastapāda, as a realist, seeks to show that perceptual judgments follow the Vaiśeṣika ontological categories. If in Diṅṅāga’s epistemology perceptual judgement remains outside the pramāṇa system, in Praśastapāda’s Vaiśeṣika it pertains to the pramāṇa of perception.