Non-Cognition and the Third Pramāṇa

The present paper discusses some concepts and materials that may be linked to Īśvarasena’s theory of non-cognition. These include the concept of feiliang 非量 as found in the writings of Dharmapāla, Asvabhāva, Jinaputra and their Chinese counterparts, and apramāṇatā (or apramāṇatva), as found in the works of Dharmakīrti and his commentators. I shall demonstrate that the two concepts in many ways mirror the theory of three pramāṇas, proposed by Īśvarasena. As most of these materials are from the sixth to eighth century, they are extremely helpful for clarifying the early development of the theory of non-cognition and filling gaps in our understanding of the early development of this theory.