In the Milindapañha, Nāgasena explains the absence of a permanent self by the analogy of:

A chariot, which is only a name for its parts

A crystal reddened by a nearby flower

A chariot, which is only a name for its parts

The Buddhist argument for momentariness from arthakriyākāritva holds that:

To be real is to be causally efficacious, and a permanent thing could produce effects neither all at once nor successively

Recognition proves that objects endure through time

The effect pre-exists in its material cause

To be real is to be causally efficacious, and a permanent thing could produce effects neither all at once nor successively

Whatever is perceived is real, and only permanent things are perceived

Assertion (A): For Nāgārjuna, śūnyatā does not mean that nothing exists at all. Reason (R): Nāgārjuna identifies emptiness with dependent origination, and conventional truth (saṃvṛti) is retained alongside ultimate truth. Choose the correct option.

Both A and R are true, and R is the correct explanation of A

Both A and R are true, but R is not the correct explanation of A

Assertion (A): Samyak smṛti (right mindfulness) belongs to the samādhi group of the Eightfold Path. Reason (R): Samādhi is the first limb of the Eightfold Path. Choose the correct option.

Both A and R are true, and R is the correct explanation of A

Both A and R are true, but R is not the correct explanation of A

Classical Indian Philosophy II: Buddhism, from the Four Noble Truths to the Four Schools and Tibet

The Buddhism block of Unit 1 asks for the Four Noble Truths and the Eightfold Path, the distinction between the Brāhmaṇic and Śramaṇic traditions, and three metaphysical doctrines, pratītyasamutpāda (dependent origination), kṣaṇabhaṅgavāda (momentariness) and anātmavāda (no-self). It then names five schools, Vaibhāṣika, Sautrāntika, Yogācāra, Mādhyamika and Tibetan Buddhism. The four Indian schools are best learnt as answers to one question, what is the status of the external object, and the chapter sets them out that way. The document prints "Āstangika", "Brahmiṇic", "Śraminic" and "kṣaṇabhahgavāda"; these are Aṣṭāṅgika, Brāhmaṇic, Śramaṇic and kṣaṇabhaṅgavāda, and the chapter uses the correct forms.

1. Brāhmaṇic and Śramaṇic traditions

Early Indian thought is often divided into two streams. The Brāhmaṇic stream accepts the authority of the Veda, centres religious life on ritual performed by a hereditary priesthood, values the householder stage and, in the Upaniṣads, seeks a permanent self identical with Brahman. The Śramaṇic stream (from śram, to strive) is the movement of wandering renunciants, Buddhists, Jainas, Ājīvikas and others, who reject Vedic authority and priestly mediation, hold that liberation is won by one's own discipline and insight, and admit people irrespective of birth. The grammarian Patañjali's Mahābhāṣya cites "śramaṇa-brāhmaṇam" as a standard example of a natural opposition, like snake and mongoose, while Aśoka's edicts urge respect for both brāhmaṇas and śramaṇas.

The two streams compared
Point	Brāhmaṇic	Śramaṇic
Authority	Veda as revealed and eternal	Experience and the teacher's insight; Veda rejected
Religious means	Ritual, later knowledge of Brahman	Ethical discipline, meditation, austerity
Social frame	Varṇa and āśrama; householder central	Renunciant order (saṅgha) open across birth
Self	Permanent ātman	Jainas: many souls; Buddhists: no permanent self

2. The Four Noble Truths and the Eightfold Path

The Buddha's first sermon at Sarnath (the Dhammacakkappavattana Sutta) sets out the Four Noble Truths in the form of a medical diagnosis. Duḥkha: life as ordinarily lived is unsatisfactory, including birth, ageing, sickness, death and separation from the loved. Samudaya: its origin is tṛṣṇā (craving) in three forms, craving for sense pleasure (kāma-tṛṣṇā), for existence (bhava-tṛṣṇā) and for non-existence (vibhava-tṛṣṇā). Nirodha: its cessation, nirvāṇa, is the extinguishing of craving. Mārga: the path to cessation is the Noble Eightfold Path, a middle way between self-indulgence and self-mortification.

The Aṣṭāṅgika Mārga and its three groups
Group	Limbs
Prajñā (wisdom)	1 samyag dṛṣṭi (right view), 2 samyak saṃkalpa (right resolve)
Śīla (conduct)	3 samyag vāk (right speech), 4 samyak karmānta (right action), 5 samyag ājīva (right livelihood)
Samādhi (concentration)	6 samyag vyāyāma (right effort), 7 samyak smṛti (right mindfulness), 8 samyak samādhi (right concentration)

⚠️ The path is a set of limbs, not a ladder

"Aṣṭāṅgika" means eight-limbed. The limbs are cultivated together, and the traditional order of training runs śīla, samādhi, prajñā even though the list begins with right view. Do not confuse it with Patañjali's aṣṭāṅga yoga (yama to samādhi), whose limbs are sequential stages; that belongs to the Yoga school and to Unit 3.

3. Dependent origination, momentariness and no-self

Pratītyasamutpāda, dependent origination, is stated in the formula "when this is, that comes to be; from the arising of this, that arises; when this is not, that does not come to be; from the ceasing of this, that ceases". Everything arises in dependence on conditions and nothing is its own cause. The Buddha presented it as the middle way between eternalism (śāśvatavāda), the view that a permanent self persists, and annihilationism (ucchedavāda), the view that death is simply the end. Applied to the human predicament it becomes the chain of twelve links (nidāna).

The twelve nidānas, in order: avidyā (ignorance), saṃskāra (dispositions), vijñāna (consciousness), nāma-rūpa (name and form, the psycho-physical organism), ṣaḍāyatana (the six sense bases), sparśa (contact), vedanā (feeling), tṛṣṇā (craving), upādāna (grasping), bhava (becoming), jāti (birth) and jarā-maraṇa (ageing and death).
Kṣaṇabhaṅgavāda (momentariness): whatever exists lasts only a moment. The later argument of Dharmakīrti and Ratnakīrti's Kṣaṇabhaṅgasiddhi runs: to be real is to have causal efficacy (arthakriyākāritva); a permanent thing could produce its effects neither all at once (then nothing would remain for later) nor one after another (then its nature would change); so whatever is real is momentary. The apparent continuity of things is a series (santāna) of similar moments.
Anātmavāda (no-self): what we call a person is a changing aggregate of five skandhas, rūpa (form), vedanā (feeling), saṃjñā (perception), saṃskāra (dispositions) and vijñāna (consciousness), none of which is a permanent owner. In the Milindapañha the monk Nāgasena tells King Milinda that "Nāgasena" is a name for the aggregates as "chariot" is a name for pole, axle and wheels. Karma and rebirth are explained by the continuity of the series, as one lamp lights another without anything passing over.

🎯 The Nyāya objection to momentariness

Nyāya and Mīmāṃsā reply that recognition (pratyabhijñā), "this is the same Devadatta I saw yesterday", shows an enduring object and an enduring knower. Memory too requires that the one who experienced be the one who remembers. The Buddhist answer is that recognition is a composite cognition that mistakes similarity in a series for identity, as a flame looks like one flame though its fuel is renewed every instant.

4. The four Indian schools: what is the status of the object?

The Indian and Tibetan doxographers arrange the schools in an ascending order. The Vaibhāṣika and Sautrāntika (both non-Mahāyāna, often grouped as Hīnayāna in Indian texts) are realists about external objects and differ on how we know them. The Yogācāra and Mādhyamika are Mahāyāna and deny, respectively, that objects exist apart from consciousness, and that anything, consciousness included, has an intrinsic nature (svabhāva).

The four schools at a glance
School	Status of the external object	Label and key figures	Theory of error, where one is standard
Vaibhāṣika (Sarvāstivāda)	Real and directly perceived; dharmas exist in past, present and future	Bāhya-pratyakṣa-vāda; the Mahāvibhāṣā; Vasubandhu's Abhidharmakośa reports it	—
Sautrāntika	Real but momentary, known only by inference from the form (ākāra) it leaves in cognition	Bāhya-anumeya-vāda (representationalism); relies on the sūtras, not the Abhidharma	—
Yogācāra (Vijñānavāda)	No object outside consciousness: vijñaptimātratā, "mere representation"	Asaṅga; Vasubandhu's Viṃśatikā and Triṃśikā; ālaya-vijñāna (storehouse consciousness)	Ātmakhyāti: the error projects an inner cognition as an outer object
Mādhyamika	Neither existent nor non-existent in itself: all is śūnya, empty of svabhāva	Nāgārjuna's Mūlamadhyamakakārikā; Āryadeva; Candrakīrti (Prāsaṅgika)	Asatkhyāti: the error cognises the unreal

Nāgārjuna's method is the prasaṅga, a reductio that draws unacceptable consequences from the opponent's thesis without asserting a counter-thesis, and the catuṣkoṭi, the rejection of all four alternatives (it is, it is not, both, neither) when applied to an intrinsic nature. Emptiness is identified with dependent origination (Mūlamadhyamakakārikā 24.18), so śūnyatā is not nothingness. Two truths keep the doctrine from nihilism: saṃvṛti-satya (conventional truth), in which things function, and paramārtha-satya (ultimate truth), in which they lack svabhāva. Yogācāra adds the three natures (trisvabhāva): the imagined (parikalpita), the dependent (paratantra) and the perfected (pariniṣpanna), and eight consciousnesses crowned by the ālaya-vijñāna, which stores the seeds (bīja) of karma.

🧠 A sentence to fix the order

Vaibhāṣika sees the object, Sautrāntika infers it, Yogācāra dissolves it into mind, Mādhyamika empties both mind and object. For theories of error: ātmakhyāti goes with Yogācāra (the "self", here consciousness, is what appears) and asatkhyāti with Mādhyamika (the unreal appears).

5. Tibetan Buddhism

Buddhism reached Tibet in two waves. In the eighth century the Indian scholar Śāntarakṣita and the tantric master Padmasambhava founded the first monastery at Samye; the "Samye debate" traditionally set the Indian gradualist Kamalaśīla against the Chinese teacher Moheyan, who taught sudden awakening, and the Tibetan tradition records the Indian side as victorious. In the eleventh century the Bengali scholar Atiśa Dīpaṃkara renewed the tradition and wrote the Lamp for the Path to Enlightenment, the model for the later lamrim ("stages of the path") literature.

Four major schools: Nyingma (the oldest, tracing itself to Padmasambhava), Kagyu (Marpa and Milarepa), Sakya, and Gelug, founded by Tsongkhapa (1357–1419), the school of the Dalai Lamas.
Its practice is Vajrayāna, the tantric form of Mahāyāna, with its emphasis on the teacher (lama), ritual, visualisation and the ideal of the bodhisattva.
Its philosophy is Indian Madhyamaka. Tibetan doxography ranks four tenet systems, Vaibhāṣika, Sautrāntika, Cittamātra (Yogācāra) and Madhyamaka, and divides Madhyamaka into Svātantrika (Bhāviveka) and Prāsaṅgika (Buddhapālita, Candrakīrti); the Gelug school holds Prāsaṅgika to be the highest view.

Key takeaways

The Śramaṇic stream (Buddhists, Jainas, Ājīvikas) rejects Vedic authority and priestly ritual and seeks liberation by one's own effort; the Brāhmaṇic stream rests on the Veda, ritual and the permanent self.
Four Noble Truths: duḥkha, samudaya (threefold tṛṣṇā), nirodha, mārga; the Eightfold Path groups into prajñā (1–2), śīla (3–5) and samādhi (6–8).
Dependent origination has twelve links from avidyā to jarā-maraṇa; momentariness rests on arthakriyākāritva; no-self analyses the person into five skandhas (the chariot of the Milindapañha).
Object status: Vaibhāṣika directly perceived, Sautrāntika inferred, Yogācāra mere representation (ātmakhyāti), Mādhyamika empty of svabhāva (asatkhyāti), with two truths and the catuṣkoṭi.
Tibetan Buddhism: Śāntarakṣita and Padmasambhava at Samye (8th century), Atiśa (11th century), four schools with Tsongkhapa's Gelug, Vajrayāna practice and Prāsaṅgika Madhyamaka as the highest view.

Practice questions (10)

Attempt each one before opening the answer. Every explanation names the tempting wrong option as well as the right one, because that is where marks are lost.

Which Buddhist school holds that external objects are real but known only by inference from their representations in cognition?
1. Yogācāra
2. Mādhyamika
3. Vaibhāṣika
4. Sautrāntika
Show answer
Answer: D — Sautrāntika
Sautrāntika is bāhyānumeya-vāda: the momentary object has vanished by the time it is cognised, so it is inferred from the form it leaves. Vaibhāṣika holds direct perception of objects, Yogācāra denies objects outside consciousness, and Mādhyamika denies svabhāva to both.
Match the theory of error with its school: ātmakhyāti.
1. Yogācāra
2. Mādhyamika
3. Prabhākara Mīmāṃsā
4. Nyāya
Show answer
Answer: A — Yogācāra
Ātmakhyāti is Yogācāra: in error an inner cognition is projected as an external object. Mādhyamika's theory is asatkhyāti, Nyāya's anyathākhyāti and Prabhākara's akhyāti.
In the Milindapañha, Nāgasena explains the absence of a permanent self by the analogy of:
1. Clay transformed into a pot
2. A crystal reddened by a nearby flower
3. A chariot, which is only a name for its parts
4. A rope mistaken for a snake
Show answer
Answer: C — A chariot, which is only a name for its parts
The chariot is nothing over and above pole, axle and wheels, and "Nāgasena" is a conventional name for the five aggregates. The rope-snake is Advaita's example, clay and pot illustrate satkāryavāda, and the red crystal is the Sāṃkhya-Yoga image of puruṣa's apparent colouring by prakṛti.
Which text is the foundational work of the Mādhyamika school?
1. Viṃśatikā
2. Kṣaṇabhaṅgasiddhi
3. Abhidharmakośa
4. Mūlamadhyamakakārikā
Show answer
Answer: D — Mūlamadhyamakakārikā
Nāgārjuna's Mūlamadhyamakakārikā founds Madhyamaka. The Viṃśatikā is Vasubandhu's Yogācāra defence of mere representation, the Abhidharmakośa his summary of Vaibhāṣika Abhidharma, and the Kṣaṇabhaṅgasiddhi Ratnakīrti's proof of momentariness.
The Buddhist argument for momentariness from arthakriyākāritva holds that:
1. Recognition proves that objects endure through time
2. The effect pre-exists in its material cause
3. To be real is to be causally efficacious, and a permanent thing could produce effects neither all at once nor successively
4. Whatever is perceived is real, and only permanent things are perceived
Show answer
Answer: C — To be real is to be causally efficacious, and a permanent thing could produce effects neither all at once nor successively
The argument defines the real by causal efficacy and shows a permanent entity cannot have it, so the real is momentary. Recognition is the Nyāya objection, and pre-existence of the effect is Sāṃkhya satkāryavāda.
Assertion (A): For Nāgārjuna, śūnyatā does not mean that nothing exists at all. Reason (R): Nāgārjuna identifies emptiness with dependent origination, and conventional truth (saṃvṛti) is retained alongside ultimate truth. Choose the correct option.
1. Both A and R are true, and R is the correct explanation of A
2. Both A and R are true, but R is not the correct explanation of A
3. A is true, but R is false
4. A is false, but R is true
Show answer
Answer: A — Both A and R are true, and R is the correct explanation of A
Both are true and R explains A. Things are empty of svabhāva precisely because they arise dependently (Mūlamadhyamakakārikā 24.18), and at the conventional level they function; so emptiness is the absence of intrinsic nature, not non-existence.
Assertion (A): Samyak smṛti (right mindfulness) belongs to the samādhi group of the Eightfold Path. Reason (R): Samādhi is the first limb of the Eightfold Path. Choose the correct option.
1. Both A and R are true, and R is the correct explanation of A
2. Both A and R are true, but R is not the correct explanation of A
3. A is true, but R is false
4. A is false, but R is true
Show answer
Answer: C — A is true, but R is false
A is true: right effort, right mindfulness and right concentration make up the samādhi group. R is false: the first limb is right view (samyag dṛṣṭi); right concentration is the eighth.
Which of the following belong to the śīla (conduct) group of the Eightfold Path? Select all that apply.
1. Right speech
2. Right resolve
3. Right action
4. Right livelihood
Show answer
Answer: A — Right speech; C — Right action; D — Right livelihood
Śīla comprises right speech, right action and right livelihood (limbs 3 to 5). Right resolve belongs with right view to prajñā.
Which of the following are among the three natures (trisvabhāva) of Yogācāra? Select all that apply.
1. Paratantra
2. Saṃvṛti
3. Pariniṣpanna
4. Parikalpita
Show answer
Answer: A — Paratantra; C — Pariniṣpanna; D — Parikalpita
The three natures are the imagined (parikalpita), the dependent (paratantra) and the perfected (pariniṣpanna). Saṃvṛti is the conventional truth of the two-truth doctrine emphasised by Madhyamaka.
How many links (nidānas) make up the chain of dependent origination? Type the number.
Numerical answer — type the value.
Show answer
Answer: 12
Twelve, from avidyā (ignorance) through saṃskāra, vijñāna, nāma-rūpa, ṣaḍāyatana, sparśa, vedanā, tṛṣṇā, upādāna, bhava and jāti to jarā-maraṇa (ageing and death).