Dharmakīrti

Brief definition

Dharmakīrti is one of the most influential Buddhist logicians and epistemologists, developing a sophisticated theory of valid cognition (pramāṇa). Building on Dignāga, he refines accounts of perception, inference, and the status of objects and mental states.

Placement among schools

Doxographically, Dharmakīrti is often placed in a Sautrāntika-influenced stream of Buddhist thought, though some later traditions interpret him through a Yogācāra lens. In the grid Vaibhāṣika / Sautrāntika / Cittamātra / Madhyamaka:

• He is usually associated with a refined Sautrāntika position: external objects are accepted but known primarily through momentary causal efficacy and inference, not as robustly given substances.
• His work is widely appropriated by later Mādhyamika authors (especially in Tibet) as a conventional-level account of how mind and knowledge operate, even though Madhyamaka itself critiques any attempt to turn his epistemology into a final ontology.

Thus Dharmakīrti stands as a central figure in the epistemological articulation of Buddhist thought, mediating between Abhidharma-style realism, Sautrāntika critical refinements, and later Mahāyāna uses of logic and pramāṇa theory.