Nagarjuna c. 150 – c. 250

Nagarjuna was a 2nd or 3rd-century AD Indian Mahayana Buddhist philosopher and the founder of the Madhyamaka or Middle Way school, regarded as one of the most important philosophers in the Indian Buddhist tradition. His central work, the Mulamadhyamakakarika or Fundamental Verses on the Middle Way, develops the doctrine of emptiness, arguing that all phenomena lack inherent existence and exist only in relations of dependent origination. His method of reductio ad absurdum, applied systematically to philosophical positions of his Buddhist and Hindu interlocutors, demonstrated the limits of conceptual thought. His thought reshaped subsequent Buddhist philosophy across India, Tibet, China, and Japan, and provided the philosophical foundations of nearly every later Mahayana school. He has been compared with thinkers including Wittgenstein and Sextus Empiricus for his anti-dogmatic philosophical method.

Nagarjuna (c. 150–250) was the founding figure of the Madhyamaka school of Mahayana Buddhism and one of the most influential philosophers of any tradition. The historical figure is poorly attested — the surviving accounts mix Nagarjuna with later figures of the same name, and the dating of the works attributed to him is contested — but the philosophical achievement of the Mulamadhyamakakarika and the works that surround it is unmistakable.

The Mulamadhyamakakarika (Fundamental Verses on the Middle Way) is a sustained dialectical analysis of all the categories by which we attempt to characterize the ultimate nature of things — causation, motion, time, the self, even nirvana — and shows that each category is incoherent if treated as referring to something with intrinsic nature (svabhava). The conclusion is sunyata, emptiness: nothing exists from its own side; all phenomena exist only in dependence on conditions. The doctrine is famously equivalent to dependent origination (pratityasamutpada), the Buddha's central teaching as Nagarjuna reads it.

Nagarjuna's influence on subsequent Mahayana Buddhism is foundational. The Yogacara, Hwaeom, Tiantai, and Zen traditions all develop within frameworks Nagarjuna established. The Tibetan Buddhist commentarial tradition — Tsongkhapa, the Dalai Lamas — preserves and refines the Madhyamaka analysis with extraordinary technical sophistication. The contemporary comparative engagement of Madhyamaka with Western philosophy — Garfield, Siderits, Cowherds — has been one of the most productive recent developments in cross-cultural philosophy.