Buddhist ethics is grounded in the Four Noble Truths, with the ethical life being the "path" (the Fourth Noble Truth) to the cessation of suffering (Duḥkha). The goal is Nirvāṇa.
Buddhist ethics *is* this path (Mārga).
This is the basic code of ethical conduct for all lay Buddhists. It is a set of voluntary abstentions:
This is the complete and systematic path to enlightenment, which includes ethical conduct, mental discipline, and wisdom.
The path is divided into three groups:
| Group | Path | What it means |
|---|---|---|
| 1. Wisdom (Prajñā) | 1. Right View | Understanding the Four Noble Truths and the nature of reality (e.g., impermanence). |
| 2. Right Intention | Having the intention of renunciation, non-ill-will, and harmlessness. | |
| 2. Ethical Conduct (Śīla) | 3. Right Speech | Abstaining from lying, gossip, harsh speech, and idle chatter. |
| 4. Right Action | Following the Five Precepts (Pañcaśīla). | |
| 5. Right Livelihood | Avoiding professions that harm others (e.g., weapon trading, butchery, selling intoxicants). | |
| 3. Mental Discipline (Samādhi) | 6. Right Effort | Cultivating good qualities and abandoning bad qualities. |
| 7. Right Mindfulness | Being fully aware of one's body, feelings, mind, and reality in the present moment. | |
| 8. Right Concentration | Developing deep meditative states (Samādhi) that lead to enlightenment. |
Jaina ethics is perhaps the most rigorous in its emphasis on non-violence.
Metaphysical Foundation: The universe is full of Jīva (souls, life), which are found in humans, animals, plants, and even "non-living" things like water and wind. Karma is seen as a subtle physical matter that sticks to the soul due to passions, weighing it down and trapping it in Saṃsāra.
Ethical Goal: The goal is Mokṣa, which is achieved by stopping the influx of new karma (Saṃvara) and shedding all old karma (Nirjarā). This leads to the soul becoming pure and light, floating to the top of the universe.
The core of Jaina ethics is the Pañca Mahāvrata, or the Five Great Vows.
Ahiṃsā Paramo Dharmaḥ
"Non-violence is the highest virtue (Dharma)."
Jainism prescribes two different levels of ethical vows, one for monks and nuns, and one for lay followers.
| The Vow | Mahāvrata (The "Great Vow") (For Monks & Nuns) |
Aṇuvrata (The "Lesser Vow") (For Lay People) |
|---|---|---|
| 1. Ahiṃsā (Non-violence) | Absolute. Must not harm any life (even microscopic) in thought, word, or deed. (e.g., they wear mouth-cloths, sweep the ground). | Relative. Must not harm any sentient life (humans, animals) intentionally. Harm in professions like farming is accepted as a necessity. |
| 2. Satya (Truthfulness) | Absolute. Must not speak any untruth, even if it is pleasant. | Relative. Must not tell gross lies, especially those that cause harm (e.g., perjury, harmful gossip). |
| 3. Asteya (Non-stealing) | Absolute. Must not take anything that is not given, even a blade of grass. | Relative. Must not commit theft, robbery, or use false measures in business. |
| 4. Brahmacharya (Celibacy) | Absolute. Complete celibacy in thought, word, and deed. | Relative. Chastity. Remaining faithful to one's spouse. |
| 5. Aparigraha (Non-possession) | Absolute. Complete renunciation of all possessions, including clothes (for Digambara monks). | Relative. Limiting one's possessions and wealth to one's needs and giving the rest in charity. |
The Cārvāka school (also called Lokāyata) is the only "heterodox" school that is also fully materialist. This foundation dictates its unique ethical position.
Given this worldview, the Cārvāka ethics are a form of Hedonism (the pursuit of pleasure).
"No one gives up eating fish because of the bones... One should not give up pleasure for fear of pain."
"Yāvaj jīvet sukhaṃ jīvet, ṛṇaṃ kṛtvā ghṛtaṃ pibet"
"As long as you live, live happily; take a loan (ṛṇa) and drink ghee (clarified butter)."