Catvāri Āryasatyāni

Catvāri Āryasatyāni (चत्वारि आर्यसत्यानि) — the Four Noble Truths — constitute the foundational teaching of the Buddha, traditionally identified as his first discourse, delivered at the Deer Park in Sarnath. The four truths are: duḥkha (suffering/unsatisfactoriness), samudaya (the origin of suffering), nirodha (the cessation of suffering), and mārga (the path leading to cessation). This fourfold structure parallels the diagnostic method of ancient Indian medicine: identify the disease, its cause, the possibility of cure, and the treatment.

The First Noble Truth (duḥkha) is not merely that life contains suffering, but that all conditioned existence is permeated by unsatisfactoriness — even pleasure is duḥkha because it is impermanent. The Second Noble Truth identifies taṇhā (craving) as the origin of suffering — the relentless desire for sensory pleasure, becoming, and non-existence. The Third Noble Truth (nirodha) asserts that the cessation of craving leads to the cessation of suffering — nibbāna. The Fourth Noble Truth is the Noble Eightfold Path, the practical means to realize this cessation.

In the Mādhyamaka tradition, Nāgārjuna defends the four truths by arguing that they are intelligible only if all things are empty. In Mūlamadhyamakakārikā 24.18 he states: yaḥ pratītyasamutpādaḥ śūnyatāṃ tāṃ pracakṣmahe / sā prajñaptir upādāya pratijñā saiva madhyamā — “Whatever is dependently arisen, that we declare to be emptiness; that is dependent designation, and precisely that is the middle way.” If things possessed inherent existence, suffering could neither arise (samudaya) nor cease (nirodha); because everything arises dependently, the four truths stand — but only on the ground of emptiness (cf. MMK 24.14, 24.40).

Verification notes

• The Dhammacakkappavattana Sutta (Saṃyutta Nikāya 56.11) is the primary source for the first discourse.
• Nāgārjuna’s treatment in Mūlamadhyamakakārikā 24 is translated by Garfield (1995).
• The medical analogy (chikitsā) is discussed in Analayo’s Comparative Study of the Majjhima Nikāya.
• Audited against Wikipedia (September 2026).