Abstract

This article will critically examine the Nyāya-Vaiśeṣika theory of substance (_dravya_). The Buddhists are reductionists, who believe that there is no substance over and above its attributes (_guṇa_) or parts (_avayava_). Thus, a pot is a set of a certain shape, size, color, texture, etc. But the Nyāya-Vaiśeṣika philosopher thinks that a pot is a substance that houses all of its attributes and actions (_karman_). It holds all these together. Also, it binds its parts. Although the Nyāya-Vaiśeṣika school defines a substance, it does not seem to offer any theory of the diachronic identity of a substance; it does not discuss a Theseus’-ship-like case. In this article we shall offer a theory of diachronic identity of a substance based on a Nyāya-Vaiśeṣika definition of substance.