Buddhist Philosophy

A diagnosis of suffering that became one of the world’s great philosophies: no fixed self, everything arising in dependence, and a millennium of argument that sharpened every school in India.

A doctor does not begin with metaphysics. He looks at the patient, names the illness, finds its cause, says whether it can be cured, and prescribes. The Buddha’s first teaching has exactly this shape — and from that practical beginning grew theories of mind, causation, language and knowledge that Hindu philosophers spent fifteen centuries answering. The In Dialogue page gives a short introduction; this page goes deeper.

School view This page presents Buddhist philosophy as Buddhist thinkers themselves set it out, drawing on Pāli and Sanskrit sources. Buddhism is a living religion, with its own scriptures and self-understanding; rival schools’ critiques are gathered in the box near the end.

Among the wanderers

Siddhārtha Gautama lived in the Ganges plain, most historians now think in the 5th century BCE (Theravāda tradition places him earlier). It was an age of new cities, new kingdoms and new questions. Beside the Vedic priests moved the śramaṇas, “strivers”: wandering renouncers who rejected the sacrificial order and sought freedom by austerity, meditation or argument. The Pāli Sāmaññaphala Sutta names six famous teachers of the day, among them the materialist Ajita Kesakambalī, the fatalist Makkhali Gosāla (see In Dialogue) and Nigaṇṭha Nātaputta — Mahāvīra of the Jains (see Jaina Philosophy).

After his awakening at Bodh Gaya, Gautama — now the Buddha, “the awakened one” — taught a middle way between indulgence and self-torment, and, in philosophy, between belief in a permanent self and the materialists’ annihilation at death.

  1. c. 5th c. BCEThe BuddhaTeaching in Magadha and Kosala for some forty-five years. His words were transmitted orally by the monastic community, the saṅgha.
  2. 3rd c. BCEAśokaThe Mauryan emperor’s edicts promote dharma and non-violence; missions carry Buddhism to Sri Lanka.
  3. 1st c. BCEThe Pāli Canon written downIn Sri Lanka, by the Theravāda tradition’s own account. Other schools kept canons in Sanskrit and Prakrit.
  4. c. 2nd c. CENāgārjunaFounder of the Madhyamaka, the “middle” school of emptiness.
  5. c. 4th–5th c.Asaṅga, Vasubandhu, BuddhaghosaThe brothers Asaṅga and Vasubandhu shape Yogācāra; Vasubandhu’s Abhidharmakośa summarises Abhidharma. In Sri Lanka, Buddhaghosa writes the Theravāda classic Visuddhimagga.
  6. c. 480–540DignāgaThe great logician who founds the Buddhist theory of knowledge. Nālandā in Bihar is now the largest centre of learning in Asia.
  7. c. 600–660DharmakīrtiMakes Dignāga’s logic a complete system.
  8. 8th c.Śāntarakṣita goes to TibetHis Tattvasaṅgraha surveys and answers every rival school, Hindu and Buddhist.
  9. c. 1200Nālandā and Vikramaśīla sackedThe great monastic universities are destroyed during the conquests in Bihar and Bengal.
  10. 1956Ambedkar’s conversionAt Nagpur, B. R. Ambedkar and several hundred thousand followers take refuge in the Buddha.

The four truths

In his first sermon, at the deer park near Vārāṇasī, the Buddha set out four “truths of the noble ones”: duḥkha, the unsatisfactoriness of conditioned life; its arising, from craving (tṛṣṇā, Pāli taṇhā); its cessation, nirvāṇa; and the path, the Noble Eightfold Path of right view, intention, speech, action, livelihood, effort, mindfulness and concentration.

इदं खो पन, भिक्खवे, दुक्खं अरियसच्चं — जातिपि दुक्खा, जरापि दुक्खा … संखित्तेन पञ्चुपादानक्खन्धा दुक्खा । idaṃ kho pana, bhikkhave, dukkhaṃ ariyasaccaṃ — jātipi dukkhā, jarāpi dukkhā … saṅkhittena pañcupādānakkhandhā dukkhā This, monks, is the noble truth of suffering: birth is suffering, ageing is suffering … in short, the five aggregates of clinging are suffering. Dhammacakkappavattana Sutta, Saṃyutta Nikāya 56.11 (Pāli)

Duḥkha is wider than pain. It is the friction of a wheel badly fitted to its axle: even pleasure is unsatisfying because it passes, and a life built on what passes cannot rest. Notice what the last line says. The deepest suffering lies in the five skandhas — body, feeling, perception, mental formations and consciousness — as clung to. The problem is not that we have a body and mind, but that we grasp them as “mine,” “I,” “my self.”

Not-self

The teaching of anātman is sometimes heard as “you do not exist.” Buddhist philosophers say something more careful. Search experience for a self that is permanent, independent and in control, and you will not find it: each of the five aggregates changes, each arises from conditions, none obeys our command. What we call a person is a stream of physical and mental events, causally linked like the flame of a lamp passed through the night — not the same flame, not a different one.

So the person is real conventionally, as the chariot of Nāgasena’s famous simile is real (see In Dialogue), but there is no extra owner standing behind the stream. Seeing this is not meant to be bleak: much of our anxiety and cruelty, Buddhist teachers say, comes from defending an imagined fortress called “me.”

Dependent arising

If there is no self, what links one life, one moment, to the next? The Buddha’s answer is pratītya-samutpāda, “arising in dependence,” given in a terse formula:

इमस्मिं सति इदं होति, इमस्सुप्पादा इदं उप्पज्जति ।
इमस्मिं असति इदं न होति, इमस्स निरोधा इदं निरुज्झति ॥
imasmiṃ sati idaṃ hoti, imassuppādā idaṃ uppajjati;
imasmiṃ asati idaṃ na hoti, imassa nirodhā idaṃ nirujjhati
When this is, that is; from the arising of this, that arises. When this is not, that is not; from the ceasing of this, that ceases. A recurring formula of the Pāli Canon (e.g. Saṃyutta Nikāya 12.21)

Applied to a human life, the formula unfolds into twelve links (nidānas). Later Abhidharma teachers spread them over three lives — past causes, present results and causes, future results — but every school agrees that the chain can also be watched turning moment by moment. Step round the wheel; each station holds two links:

प्रतीत्यTwelve links

The wheel replaces the self with a process. Rebirth happens without anything passing over intact, as one candle lights another. Karma here is above all intention (cetanā); a creator God is not needed to dispense its fruits, because the fruits are built into the causal stream itself. Buddhists accordingly argued, at length, that there is no Īśvara: a permanent cause could never produce anything at one moment rather than another. When the Buddha’s disciple Assaji was asked what his teacher taught, he answered in a single verse — the most widely inscribed Buddhist verse in Asia, found in its Sanskrit form on stones and seals from Bihar to the Malay peninsula:

ये धम्मा हेतुप्पभवा तेसं हेतुं तथागतो आह ।
तेसञ्च यो निरोधो एवंवादी महासमणो ॥
ye dhammā hetuppabhavā tesaṃ hetuṃ tathāgato āha,
tesañca yo nirodho evaṃvādī mahāsamaṇo
Of things that arise from a cause, the Tathāgata has told the cause, and also their ceasing. Such is the teaching of the great renouncer. Vinaya Piṭaka, Mahāvagga 1.23 (Pāli)

Moments and elements: Abhidharma

The Buddha’s discourses speak the language of ordinary life. The Abhidharma — “higher teaching” — set out to restate them without any convenient fictions, listing the ultimate elements (dharmas) of experience: kinds of matter, kinds of consciousness, mental factors such as attention, greed or mindfulness, and the unconditioned nirvāṇa. The Theravāda Abhidhamma counts four kinds of ultimate reality; the Sarvāstivāda list in Vasubandhu’s Abhidharmakośa has seventy-five dharmas. A person, a tree or a pot is a name for a bundle of these.

From this grew kṣaṇikavāda, the doctrine of momentariness. Two arguments carried it. First, destruction needs no cause: a pot struck by a hammer was already perishing; the hammer only starts a new series of shards. If perishing is built into being, a thing perishes the moment it arises. Second, later logicians such as Ratnakīrti (11th century) argued from efficacy: to be real is to do something. A permanent thing could not produce its effects all at once (then it would be idle afterwards) nor one by one (then it would be changing). So whatever exists, exists for an instant — like a river that is never the same water twice, yet is still called the Ganges.

Four schools of interpretation

Indian and Tibetan doxographers — and Hindu ones, such as the 14th-century Sarvadarśanasaṅgraha — sorted Buddhist philosophy into four schools, each answering the question “what is ultimately real?” more radically than the last. The scheme simplifies a messy history, but it is a good map. Tap each:

Vaibhāṣika — “all exists”

Named after the great commentary, the Mahāvibhāṣā, compiled in Kashmir, and belonging to the Sarvāstivāda (“all exists”) school. The dharmas are real in past, present and future; only their activity is momentary. That is how memory can grasp a past object and how a deed done years ago can still bear fruit. We perceive external things directly. This is Buddhist realism at its most robust.

Emptiness and the two truths

Is Madhyamaka nihilism? Its critics, Hindu and Buddhist, often said so. Nāgārjuna’s reply was that emptiness is not a thing, and not nothing: it is the absence of a fixed essence in things that plainly function. A cup is empty of own-being — it depends on clay, the potter, the firing, and our idea of “cup” — and precisely because it is empty, it can hold tea. To make sense of this he distinguished two levels of truth (satya-dvaya):

द्वे सत्ये समुपाश्रित्य बुद्धानां धर्मदेशना ।
लोकसंवृतिसत्यं च सत्यं च परमार्थतः ॥
dve satye samupāśritya buddhānāṃ dharmadeśanā,
lokasaṃvṛtisatyaṃ ca satyaṃ ca paramārthataḥ
The Buddhas’ teaching of the dharma rests on two truths: the conventional truth of the world, and truth in the ultimate sense. Nāgārjuna, Mūlamadhyamakakārikā 24.8

Conventionally, there are persons, cups and causes, and lying is wrong; ultimately, none of them has a self-standing essence. Two verses later Nāgārjuna adds that the ultimate cannot be taught except through the conventional. Readers of Advaita will hear an echo in its two levels of reality, vyavahāra and paramārtha — an echo that would become a weapon in debate.

Emptiness is meant to be lived. In the Mahāyāna it is paired with compassion: the bodhisattva vows to seek awakening for the sake of all beings, and because neither self nor other has a fixed essence, the line between my suffering and yours is not a wall. Early Buddhism’s ideal was the arhat, freed from rebirth; the Mahāyāna aims at full Buddhahood. Either way, liberation is not a self finally found but craving finally ended — a fire gone out for want of fuel.

The logicians

From the 5th century the centre of Buddhist philosophy moved to pramāṇa, the theory of knowledge (see How We Know). Dignāga — Tibetan tradition says he was born near Kāñcī — argued that there are only two means of knowledge, because there are only two kinds of object. Perception grasps the bare, momentary particular, “free of conceptual construction”; inference works with concepts, which are general. Scripture is reliable only so far as it can be checked like an inference. Dharmakīrti made this a complete system:

प्रमाणमविसंवादि ज्ञानमर्थक्रियास्थितिः । pramāṇam avisaṃvādi jñānam arthakriyā-sthitiḥ A means of knowledge is a cognition that does not deceive; non-deception means that the object can be relied on to do what it does. Dharmakīrti, Pramāṇavārttika, chapter on the establishment of pramāṇa (Pramāṇasiddhi), opening verse

Knowledge, in other words, is what you can act on. You see water, walk to it and drink; the mirage gives you nothing to drink. Dignāga’s theory of meaning, apoha (“exclusion”), was just as bold: the word “cow” does not name a real universal cow-ness, but marks off everything that is not a cow. Concepts are useful fictions, built from difference. Nyāya and Mīmāṃsā, for whom universals are real, fought this for centuries.

The great debates

The Buddhist–Hindu argument was the engine of Indian philosophy for a thousand years. The Naiyāyikas — from Vātsyāyana and Uddyotakara to Udayana’s Ātmatattvaviveka — defended an enduring self from memory and recognition, wholes over and above parts, real universals and a creator God (see Nyāya & Vaiśeṣika). Kumārila of the Mīmāṃsā attacked Yogācāra idealism and the Buddha’s claim to omniscience, and defended the authorless Veda. Buddhists such as Śāntarakṣita answered each in turn. Indian logic itself — and later Navya-Nyāya — was forged in this contest.

With Advaita the relationship was closer and more uneasy: Gauḍapāda’s Māṇḍūkya Kārikā (c. 6th century) borrows Mahāyāna images such as the whirling firebrand, yet Shankara refuted the Buddhist schools at length. The charge that Advaita was “Buddhism in disguise” (pracchanna-bauddha), and the Advaitin reply, are told on Advaita Vedānta.

Hindu authors also caricatured Buddhism. Doxographers often reduced emptiness to “nothing exists”; several Purāṇas made the Buddha an avatāra of Vishnu sent to mislead; and Tamil Śaiva hagiography tells of debates in which Buddhists are humiliated, reflecting fierce competition for royal favour. Buddhist texts returned the compliment. These portraits are history, not philosophy.

How other schools answered
  • Nyāya: memory and recognition (“I who saw it now touch it”) need one enduring subject; a pot is a real whole, not just atoms; universals are seen, not invented. Buddhist reply: a causal stream explains memory, and recognition is a construction stitched from two moments.
  • Mīmāṃsā: no human, the Buddha included, can be shown to be all-knowing, so only an authorless Veda can teach dharma. Buddhist reply: the Buddha’s teaching proves itself in practice, and a “self-valid” scripture no one composed is the stranger claim.
  • Advaita: if everything is momentary, no one remains to be liberated; if consciousness is only momentary cognitions, what witnesses their passing? Emptiness without a ground is, for Shankara, unintelligible. Buddhist reply: a “witness” is one more thing to cling to.
  • Jaina: each Buddhist school grasps one side — change — and makes it the whole; reality is enduring substance and changing modes (see Jaina Philosophy).

Decline and survival

Buddhism faded in most of India between about the 8th and 13th centuries. Historians give many causes — lost royal patronage, the absorption of Buddhist ideas and devotion into Hindu traditions, and finally the destruction of the great monasteries around 1200 — a slow fading, not one event. Elsewhere the tradition flourished: Theravāda in Sri Lanka, Myanmar and Thailand; Mahāyāna in China, Korea, Japan and Vietnam; Vajrayāna in Tibet and the Himalaya.

In modern India it returned in a new form. In 1956, at Nagpur, B. R. Ambedkar, architect of India’s constitution and a Dalit (see Varna & Jati), took refuge in the Buddha with a vast crowd of followers, and administered twenty-two vows, some of them explicitly renouncing Hindu deities and practices. His posthumously published The Buddha and His Dhamma read the Buddha as a social reformer and rationalist, reinterpreted karma and rebirth, and even questioned whether the four truths were original. This Ambedkarite Buddhism, often called Navayāna, “new vehicle,” is now practised by millions. Modern reading Its critique of caste is a challenge Hindus should hear rather than deflect. Women too had a place from early on: the Buddha admitted nuns, and the Pāli Therīgāthā, verses of the early nuns, is among the oldest women’s poetry anywhere — though the rules subordinated nuns to monks, and full ordination of women in the Theravāda is still contested.

Tamil Buddhism

The Tamil country had a long Buddhist history. The epic மணிமேகலை Maṇimēkalai of Cīttalai Cāttaṉār (usually dated between the 5th and 7th centuries; estimates vary) is the sequel to the Cilappatikāram: its heroine, the dancer’s daughter Maṇimēkalai, renounces the world, feeds the hungry from a bowl that never empties, hears the teachers of rival schools — Vedic, Śaiva, Jain, Ājīvika, materialist — and receives the dharma from the sage Aravaṇa Aṭikaḷ at Kāñcī. Its later cantos give a summary of Buddhist logic close to Dignāga’s. Kāñcī was a Buddhist centre for centuries, and Kāveripaṭṭiṉam and Nākappaṭṭiṉam had monasteries; at Nākappaṭṭiṉam a king of Śrīvijaya — the Sumatran maritime empire whose reach included the Malay peninsula — built a vihāra in the early 11th century with Rājarāja Cōḻa’s grant. See also Tamil Sacred Literature.

The story continued in modern times. In 1898 the Tamil scholar and physician Iyothee Thass founded the Sakya Buddhist Society in Madras, arguing that Tamil Dalit communities had been Buddhists before caste was imposed on them — a Tamil forerunner of Ambedkar’s movement.

Buddhism in Malaysia today

Buddhism is Malaysia’s second-largest religion, followed by nearly one in five Malaysians, most of them of Chinese descent. Community practice Chinese Mahāyāna temples such as Kek Lok Si in Penang stand alongside Theravāda ones founded by Sri Lankan, Thai and Burmese communities — the Buddhist Maha Vihara in Brickfields, Kuala Lumpur, dates from 1894 — and Tibetan centres. The Sri Lankan-born monk K. Sri Dhammananda, long based in Kuala Lumpur, wrote What Buddhists Believe, read across the region. Wesak is a national public holiday. And the roots are old: Sanskrit Buddhist inscriptions of around the 5th century, among them a stone set up by the master mariner Buddhagupta, have been found in Kedah and Seberang Perai, near the Bujang Valley’s Hindu and Buddhist temple ruins.

For Malaysian Hindus, Buddhists are neighbours — at festival open houses, at each other’s temples, and at Thaipusam, where many Chinese devotees walk. Knowing their philosophy as they know it is a courtesy as well as an education.

Check your knowledge:

Quick check

In the second noble truth, suffering arises from…

Tṛṣṇā, “thirst” — rooted in ignorance. The aggregates cause suffering only as clung to.

Which school holds that dharmas exist in past, present and future?

Sarvāstivāda means “the doctrine that all exists”; the Sautrāntikas accepted only the present.

For Dignāga, how many means of knowledge are there?

Perception for particulars, inference for concepts — against Nyāya’s four.

The Tamil Buddhist epic whose heroine learns the dharma at Kāñcī is…

Cīttalai Cāttaṉār’s epic, the sequel to the Cilappatikāram.

Questions people often ask

If there is no self, who is reborn?

No one passes over unchanged, Buddhists say, and no one completely different appears either. A stream of causes continues, as milk becomes curd: the curd is not the milk, yet it did not come from nowhere. Moral responsibility depends on that causal continuity, not on a soul.

Is emptiness the same as Brahman?

Most Buddhists and most Advaitins say no. Brahman is the one real, conscious ground of all; emptiness is the absence of any such self-standing ground — including in emptiness itself. Some modern writers find a convergence in their mystical language. Modern reading

Can a Hindu go to a Buddhist temple?

In Malaysia, many do, respectfully — and Buddhists visit Hindu temples. Follow the temple’s customs: shoes off, modest dress, no pointing your feet at the image. Whether to make offerings is a personal and family matter.

॥ Pause and reflect

  1. Recall a recent moment of irritation. Can you see feeling turning into craving or aversion — the hinge of the wheel?
  2. Pick an object near you. What does it depend on to be what it is?
  3. Which Buddhist argument would you find hardest to answer from your own tradition?

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Key terms on this page

Sources & further reading