This chapter contains discourses that explore sets of three qualities, concepts, or principles integral to the Buddha's teachings. Each sutta delves into triads such as the three kinds of right conduct, the three types of happiness, or the three aspects of wisdom. These teachings highlight the interrelated nature of these elements and their combined importance in the practice of the Dhamma. The "Book of Threes" offers a deeper understanding of how these grouped qualities work together to foster spiritual development and insight on the way of practice to enlightenment.
The Book of the Threes
Bāla vagga - The Chapter on Fools
The Chapter on Fools in the Book of the Threes, containing discourses 1–10.
Just as a fire spreading from a reed or grass hut burns down even well-built gabled mansions, all dangers, misfortunes, and troubles arise from the immature person, not from the wise.
PTS 1.101The Buddha explains the characteristics of an immature and wise person.
PTS 1.102The Buddha explains the three characteristics, signs, and patterns of conduct by which the wise recognize an immature person or a wise person—how they think, speak, and act.
PTS 1.102The Buddha contrasts an immature person and a wise person by three qualities: whether they recognize a transgression as a transgression, make amends in accordance with the Dhamma when they see it, and properly accept another’s confession.
PTS 1.103The Buddha contrasts an immature person and a wise person by three qualities: whether they ask and answer questions superficially or wisely, and whether they approve of another’s well-rounded, coherent reply.
PTS 1.103The Buddha contrasts an immature person, recognized by unwholesome bodily, verbal, and mental action, with a wise person, recognized by wholesome bodily, verbal, and mental action.
PTS 1.103The Buddha contrasts an immature person, recognized by blameworthy bodily, verbal, and mental action, with a wise person, recognized by blameless bodily, verbal, and mental action.
PTS 1.104The Buddha contrasts an immature person, recognized by afflictive bodily, verbal, and mental action, with a wise person, recognized by non-afflictive bodily, verbal, and mental action, and urges training to avoid the former and undertake the latter.
PTS 1.104Endowed with bodily, verbal, and mental misconduct, an immature person maintains themselves in a maimed and damaged state and accumulates much demerit; endowed with good bodily, verbal, and mental conduct, a wise person of integrity maintains themselves unmaimed and accumulates much merit.
PTS 1.105One who possesses three qualities without abandoning three stains—immorality, jealousy, and stinginess—is placed in hell just as if carried and set down there, while one who is virtuous, free from jealousy, and generous after abandoning those three stains is placed in heaven.
PTS 1.105Rathakāra vagga - The Chapter on the Chariot-maker
The Chapter on the Chariot-maker in the Book of the Threes, containing discourses 11–20.
A well-known bhikkhu who encourages inappropriate bodily action, verbal action, and mental qualities practices for the detriment and unhappiness of many people, whereas one who encourages appropriate bodily action, verbal action, and mental qualities practices for the welfare and happiness of gods and humans.
PTS 1.106Just as a righteous wheel-turning monarch relies on the Dhamma to provide protection for his people, so too the Buddha relies on the Dhamma to guide bodily, verbal, and mental actions, setting in motion the unsurpassed Wheel of Dhamma.
PTS 1.109The Buddha explains how bodily, verbal, and mental misconduct lead to self-infliction of harm.
PTS 1.114Puggala vagga - The Chapter on Individuals
The Chapter on Individuals in the Book of the Threes, containing discourses 21–30.
Just as nursing care is prescribed for the patient who recovers only with suitable food, medicine, and an attendant, the Dhamma is taught for the sake of those who awaken through hearing it.
PTS 1.120–1.121The Buddha explains the three types of persons existing in the world based on their mental qualities.
PTS 1.123The Buddha explains the three kinds of persons found existing in the world and who should not be associated with, who should be associated with, and who should be attended to closely with honor and respect.
PTS 1.124–1.125The Buddha describes three types of people: the blind, the one-eyed, and the two-eyed.
PTS 1.128–1.129Devadūta vagga - The Chapter on Messengers of the Gods
The Chapter on Messengers of the Gods in the Book of the Threes, containing discourses 31–40.
Where children honor their mother and father, those families are said to dwell with Brahmā.
PTS 1.132Astonished that the Buddha could sleep comfortably amid harsh conditions, a layman asks how this is possible. The Buddha contrasts worldly luxury with the serene ease of one whose mind is free from the fevers of lust, aversion, and delusion.
PTS 1.136–1.137The Buddha describes the three divine messengers that appear among human beings and what happens to those who do not heed their message.
PTS 1.138–1.141Recounting his ultra-delicate upbringing, the Buddha exposes the cognitive blindness of the ordinary mind, which reacts to decay with aversion while ignoring its own vulnerability. By projecting these realities inward, he shattered the three human intoxications with youth, health, and life.
PTS 1.145–1.146The Buddha explains the three guiding authorities for developing wholesome qualities and maintaining purity - 1) Oneself, 2) world, and 3) Dhamma.
PTS 1.147–1.149Cūḷa vagga - A Short Chapter
A Short Chapter in the Book of the Threes, containing discourses 41–50.
The three characteristics of the conditioned and the unconditioned.
PTS 1.152Just as mighty trees flourish supported by the Himalayas, a household grows in faith, virtue, and wisdom when supported by a faithful and virtuous head of the family.
PTS 1.152The Buddha describes three cases where vigour should be applied.
PTS 1.153–1.154Brāhmaṇa vagga - The Chapter on Brahmins
The Chapter on Brahmins in the Book of the Threes, containing discourses 51–60.
Two elderly brahmins admit to the Buddha that they have failed to do good deeds or create a shelter from fear. They ask the Buddha for advise on how to find shelter from fear in old age, sickness, and death.
PTS 1.155Two elderly brahmins regret neglecting spiritual practice. The Buddha compares the world to a house on fire with old age and death, advising them to rescue their wealth through giving and moral restraint before life ends.
PTS 1.156Refuting rumors that he restricts charity, the Buddha teaches that even feeding tiny creatures generates merit, but gifts given to virtuous, fully liberated disciples yield the greatest spiritual fruit.
PTS 1.160–1.162Mahā vagga - The Great Chapter
The Great Chapter in the Book of the Threes, containing discourses 61–70.
The Buddha explains the three bases of sectarian views that when closely examined, culminate in inaction. He then shares the Dhamma that is irrefutable, undefiled, blameless, and not disapproved of by the wise.
PTS 1.173–1.177When a brahmin assumes that the Buddha’s serene faculties and radiant appearance must result from enjoying the finest worldly luxuries, the Buddha explains the true “luxurious and lofty beds” he attains—the heavenly bed, through abiding in the jhānas; the brahmic bed, through the boundless cultivation of loving-kindness, compassion, appreciative joy, and equanimity; and the noble bed, through the complete abandonment of passion, aversion, and delusion.
PTS 1.180–1.184When the Kālāmas, perplexed by conflicting teachers, ask the Buddha how to know truth from falsehood, he advises against blind reliance on tradition or authority. Instead, offering a pragmatic test: reject what leads to detriment and cultivate that which leads to well-being.
PTS 1.188–1.192The venerable Nandaka teaches Sāḷha and his friend about how to independently verify the unwholesome and wholesome mental qualities.
PTS 1.193–1.196The Buddha outlines the parameters for a constructive conversation. True noble conversation avoids fault-finding and arrogance, serving only to generate clarity, comprehend the Dhamma, and achieve liberation through non-clinging.
PTS 1.197–1.198Framing the distinction between passion, aversion, and delusion, the Buddha explains their differing degrees of blameworthiness and persistence. He then teaches how to abandon each of these unwholesome roots through radical attention to specific meditative antidotes.
PTS 1.199–1.200The Buddha explains the three roots of the unwholesome and the three roots of the wholesome.
PTS 1.201–1.204Ānanda vagga - The Chapter with Ānanda
The Chapter with Ānanda in the Book of the Threes, containing discourses 71–80.
For beings hindered by ignorance and fettered by craving, kamma is the field, consciousness the seed, and craving the moisture for the establishment of their consciousness in the three realms of existence: sensual, form, and formless.
PTS 1.223For beings hindered by ignorance and fettered by craving, kamma is the field, consciousness the seed, and craving the moisture for the establishment of their intention and aspiration in the three realms of existence: sensual, form, and formless.
PTS 1.224Ānanda asks the Buddha how far his voice can reach. The Buddha explains the cosmological scale of minor, middling, and great three-thousandfold world systems, revealing he can project his voice across a billion worlds by first suffusing them with light.
PTS 1.226–1.228Samaṇa vagga - The Chapter on Ascetics
The Chapter on Ascetics in the Book of the Threes, containing discourses 81–91.
The Buddha defines a trainee as one who trains in higher virtue, higher mind, and higher wisdom.
PTS 1.231The Buddha maps the stages of awakening to fulfilling ethical conduct, collectedness, and wisdom.
PTS 1.231Loṇakapalla vagga - The Chapter on a Lump of Salt
The Chapter on a Lump of Salt in the Book of the Threes, containing discourses 92–102.
The Buddha uses the gradual purification of gold as a metaphor for mental cultivation through meditation. Just as a goldsmith removes coarse, medium, and subtle impurities until the gold is workable and radiant, a meditator abandons defilements in stages. This gradual refinement leads to deep collectedness of mind, forming the foundation for supernormal abilities and, ultimately, liberation.
PTS 1.253–1.255Sambodha vagga - The Chapter on Awakening
The Chapter on Awakening in the Book of the Threes, containing discourses 103–112.
Before his awakening, the Bodhisatta reflected on the gratification in the world, the drawback in the world, and the escape from it.
PTS 1.258The Buddha describes his quest for gratification in the world, drawback in the world, and the escape from it. He subsequently directly knew gratification, drawback, and escape as they truly are, leading to his unshakable liberation.
PTS 1.259Beings are infatuated with the world because of the gratification found in it, become disenchanted with it because of the drawback, and escape from it because there is an escape.
PTS 1.260Singing, dancing, and excessive laughter are all considered inappropriate expressions for the Noble Ones. The appropriate expression of joy for one who delights in the Dhamma is simply a gentle smile, reflecting dignified restraint.
PTS 1.261Indulging in sleep, consuming intoxicants, and sexual intercourse gives no satisfaction.
PTS 1.261What are the causes for the arising of kamma? The Buddha explains that greed, aversion, and delusion are the roots of unwholesome kamma, leading to painful results, and leading to further kamma. In contrast, non-greed, non-aversion, and non-delusion are the roots of wholesome kamma, leading to pleasant results and to the cessation of kamma.
PTS 1.263What gives rise to kamma? The Buddha explains that the roots of kamma lie in how one relates to the past, future, and present. Through repeated reflections and mental re-examination, desire springs up and binds one to objects of attachment. But when one sees the consequences of those things clearly, one instead turns away from them, leading to kamma arising from complete penetration and wisdom.
PTS 1.264Kusināra vagga - The Chapter at Kusināra
The Chapter at Kusināra in the Book of the Threes, containing discourses 123–132.
Three things thrive when obscured, not when exposed. And three things that shine forth when exposed, not when obscured.
PTS 1.282The Buddha describes three persons based on how they respond to anger. One person is like a line etched on rock, another like a line etched on ground, and the third like a line etched on water.
PTS 1.283Yodhājīva vagga - The Chapter on a Warrior
The Chapter on a Warrior in the Book of the Threes, containing discourses 133–145.
Whether or not Tathāgatas arise, this principle remains—this stability and invariance of the Dhamma: all conditioned phenomena are impermanent, all conditioned phenomena are unsatisfactory, and all phenomena are not-self.
PTS 1.286The Buddha shares in brief the three types of growth - 1) confidence, 2) virtue, and 3) wisdom.
PTS 1.287–1.288