BUDDHISM — ETHICS, PRECEPTS AND VINAYA
1. Buddhist Ethical Logic
• Buddhist ethics is training (sikkhā), not obedience to a creator-god. Conduct shapes kamma, habits and states of mind; ethical discipline (sīla) supports concentration (samādhi) and wisdom (paññā).
• Within the Noble Eightfold Path, Right Speech, Right Action and Right Livelihood are the principal ethical factors. The ideal is not merely avoiding offences but weakening greed, hatred and delusion.
Cetanāhaṃ, bhikkhave, kammaṃ vadāmi. Cetayitvā kammaṃ karoti — kāyena vācāya manasā.
Translation: “It is intention, monks, that I call kamma. Having intended, one acts by body, speech and mind.”
Source: Aṅguttara Nikāya 6.63 (Nibbedhika Sutta), Pāli.
Why it matters: Kamma is centrally connected with volition. An act is ethically understood through the intention that animates bodily, verbal or mental action.
Sabbapāpassa akaraṇaṃ, kusalassa upasampadā; sacittapariyodapanaṃ — etaṃ buddhāna sāsanaṃ.
Translation: “Not doing any evil; cultivating what is wholesome; purifying one’s own mind — this is the teaching of the Buddhas.”
Source: Dhammapada 183, Pāli.
Why it matters: A compact summary of Buddhist ethics: restraint, positive cultivation and mental purification belong together.
2. Five Precepts
The Five Precepts are the normal baseline of lay moral training. Each is phrased as a sikkhāpada, a “training rule”, and the recurring verb samādiyāmi means “I undertake”: the formula is a voluntary commitment to train.
Pāli formula
Meaning
1
Pāṇātipātā veramaṇī sikkhāpadaṃ samādiyāmi.
I undertake to refrain from killing living beings.
2
Adinnādānā veramaṇī sikkhāpadaṃ samādiyāmi.
I undertake to refrain from taking what is not given.
3
Kāmesu micchācārā veramaṇī sikkhāpadaṃ samādiyāmi.
I undertake to refrain from sexual misconduct.
4
Musāvādā veramaṇī sikkhāpadaṃ samādiyāmi.
I undertake to refrain from false speech.
5
Surāmerayamajjapamādaṭṭhānā veramaṇī sikkhāpadaṃ samādiyāmi.
I undertake to refrain from intoxicants that are a basis for heedlessness.
Source: Khuddakapāṭha 2 (Dasa-sikkhāpada), first five rules; the same fivefold ethical pattern recurs widely in Buddhist liturgy and teaching.
• 1 protects life and cultivates non-harm/compassion; 2 protects property and restrains greed; 3 regulates sexuality and attachment; 4 protects truth and trust; 5 protects heedfulness, because intoxication weakens judgement and restraint.
• Precepts are linked to kamma and rebirth, but also to the present cultivation of character. Keeping them creates conditions favourable to meditation and progress towards liberation.
3. Lay and renunciant
• Lay Buddhists may deepen practice temporarily by observing Eight Precepts on uposatha days. The third becomes complete celibacy; additional rules restrict food after noon, entertainment/adornment and luxurious beds.
• Novices normally undertake Ten Precepts. Their third rule is abrahmacariyā veramaṇī — abstention from non-celibacy — rather than the lay precept against sexual misconduct. Full ordination then places a monk or nun under an extensive Vinaya code.
The distinction is therefore one of vocation and degree, not two unrelated moralities: lay precepts permit household life; monastic discipline institutionalises renunciation and regulates the Saṅgha as a community.
4. Vinaya
Vinaya means discipline or training. The Vinaya Piṭaka is much larger than a numbered rule-list: it contains rules, origin stories, definitions, exceptions and procedures governing ordination, communal acts, robes, food, medicines, property, residence and disputes. The Pātimokkha / Prātimokṣa is the compact code recited regularly within this wider legal-literary corpus.
• At the fortnightly uposatha/poṣadha, the code is recited before the monastic community and offences requiring acknowledgement are confessed. Discipline is therefore personal and institutional: it trains the individual and preserves communal harmony and public trust.
Living Vinaya lineage
Main textual language(s)
Where chiefly used
Bhikṣu rule-count
Theravāda
Pāli
Sri Lanka and much of South-East Asia
227
Dharmaguptaka
Indic original lost; preserved chiefly in Classical Chinese
China, Korea, Vietnam; East Asian traditions
250
Mūlasarvāstivāda
Sanskrit witnesses; Tibetan and Chinese translations
Tibetan/Himalayan and Mongolian traditions
c. 253–258*
*Mūlasarvāstivāda totals vary with textual witness and counting convention; Tibetan pedagogical sources commonly give 253, while some Sanskrit/text-critical enumerations give 258. Variation lies mainly among minor/deportment rules.
These are ordination lineages, not simple synonyms for Theravāda, Mahāyāna and Vajrayāna. East Asian Mahāyāna monastics normally follow the Dharmaguptaka Vinaya; Tibetan Mahāyāna/Vajrayāna monastics follow Mūlasarvāstivāda Vinaya, often alongside bodhisattva and tantric vows.
Corpus note: six Indian Vinayas survive in substantially complete form: Theravāda, Dharmaguptaka, Mahīśāsaka, Mahāsāṃghika, Sarvāstivāda and Mūlasarvāstivāda. Only the first, second and sixth remain living ordination lineages. The others are preserved chiefly in Chinese translation and are essential evidence for the diversity of early Buddhist monastic law.
Theravāda Pātimokkha structure: 4 pārājika; 13 saṅghādisesa; 2 aniyata; 30 nissaggiya-pācittiya; 92 pācittiya; 4 pāṭidesanīya; 75 sekhiya; 7 adhikaraṇasamatha = 227. These categories range from irreversible defeat through confession/forfeiture to etiquette and procedures for settling disputes; not every item is best understood as a moral “sin”.
5. Unity: the first defeat rule
The gravest offences are pārājika / pārājika (“defeat”): commission ends one’s status as a fully ordained monastic. Across the surviving traditions the four root defeats have the same basic substance: sexual intercourse, serious theft, killing a human being, and a fraudulent claim to superhuman attainment.
Theravāda (Pāli): Yo pana bhikkhu … methunaṃ dhammaṃ paṭiseveyya … pārājiko hoti asaṃvāso.
Mūlasarvāstivāda (Sanskrit): yaḥ punar bhikṣur … maithunaṃ dharmaṃ pratisevate … pārājiko bhavaty asaṃvāsyaḥ.
Dharmaguptaka (Classical Chinese): 若比丘…犯不淨行…是比丘波羅夷不共住。
Translation: “If a monk … engages in sexual intercourse / impure conduct … he is defeated and no longer in communion.”
Sources: Theravāda Bhikkhu Pātimokkha, Pārājika 1; Mūlasarvāstivāda Prātimokṣasūtra, Pārājika 1; Dharmaguptaka Bhikṣu Prātimokṣa, T1429, Pārājika 1.
The near-parallel formulae show substantial inherited unity beneath different languages and school histories. Monastic celibacy is not merely a stronger version of the lay third precept: violation is a root defeat, not a minor lapse.
6. Diversity: everyday training
Most variation between Vinayas appears below the root offences: rule-number, arrangement, wording and fine detail differ, especially in etiquette and deportment. Such rules reveal how broad “discipline” is.
satkṛtya piṇḍapātaṃ pratigrahīṣyāma iti śikṣā karaṇīyā.
Translation: “We shall receive alms-food respectfully: this training is to be undertaken.”
Source: Mūlasarvāstivāda Prātimokṣasūtra, śaikṣa rule (Sanskrit).
na sālopena mukhena vācaṃ pravyāhariṣyāma iti śikṣā karaṇīyā.
Translation: “We shall not speak with food in the mouth: this training is to be undertaken.”
Source: Mūlasarvāstivāda Prātimokṣasūtra, śaikṣa rule (Sanskrit).
Compare the training/deportment sections: Theravāda has 75 sekhiya rules; Dharmaguptaka 100; one Sanskrit Mūlasarvāstivāda witness has 108 śaikṣa rules, while Tibetan enumerations vary. The differences concern detailed conduct, not a different ethical universe.
A useful comparison is the apparently trivial rule against speaking with food in the mouth:
Theravāda (Pāli): Na sakabaḷena mukhena byāharissāmīti sikkhā karaṇīyā.
Dharmaguptaka (Classical Chinese): 不得含食語。應當學。
Mūlasarvāstivāda (Sanskrit): na sālopena mukhena vācaṃ pravyāhariṣyāma iti śikṣā karaṇīyā.
Translation: “We shall not speak with food in the mouth: this training is to be undertaken.” The shared rule shows common inherited discipline even at the level of table manners; the different numbering, arrangement and surrounding rules show how the recensions developed independently.
Monks and nuns: the full Vinayas contain distinct bhikṣu/bhikkhu and bhikṣuṇī/bhikkhunī codes. Nuns’ codes are generally longer and include additional regulations. Historical continuity of full female ordination has also differed between Vinaya lineages.