RBSE VU Samanya Darshan study materials
RBSE VU Samanya Darshan study resources

RBSE VU Samanya Darshan cheat sheet

RBSE VU Samanya Darshan · Keep the key ideas within reach.

Quick reference

Indian Philosophy: Origins

  • Ṛgvedic hymns (c. 1500–1200 BCE) are the earliest layer; the term darśana means 'seeing' and denotes a systematic viewpoint.

  • Six orthodox (āstika) schools accept Vedic authority: Nyāya, Vaiśeṣika, Sāṃkhya, Yoga, Mīmāṃsā, Vedānta.

  • Heterodox (nāstika) schools rejecting Vedic authority: Cārvāka, Jainism, Buddhism (and early materialist traditions).

  • Ṛta is the Vedic cosmic order; later abstracted as dharma, the regulating principle of ritual and moral action.

  • The Ṛgveda 10.129 (Nāsadīya) hymn poses creation as an open question, not a dogmatic answer.

  • Pūrva-mīmāṃsā concerns itself with dharma and Vedic injunction; Uttara-mīmāṃsā (Vedānta) concerns itself with Brahman.

  • Śruti (revealed: Vedas, Brāhmaṇas, Āraṇyakas, Upaniṣads) vs smṛti (remembered: epics, Purāṇas, Dharmaśāstra).

  • The Upaniṣads are the jñāna-kāṇḍa; the Brāhmaṇas are the karma-kāṇḍa of the Vedic corpus.

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Vedic and Upanishadic Thought

  • Brahman is the impersonal ground of reality; ātman is the inner self; the mahāvākya 'tat tvam asi' (Chāndogya) identifies them.

  • Four mahāvākyas: 'prajñānaṃ brahma' (Aitareya), 'tat tvam asi' (Chāndogya), 'ayam ātmā brahma' (Māṇḍūkya), 'ahaṃ brahmāsmi' (Bṛhadāraṇyaka).

  • Sat-cit-ānanda (being, consciousness, bliss) is the standard Vedāntic description of Brahman's nature.

  • Māyā explains the appearance of plurality; avidyā (ignorance) is the individual counterpart that conceals Brahman.

  • Four states of self in Māṇḍūkya Upaniṣad: jāgrat (waking), svapna (dream), suṣupti (deep sleep), turīya (the fourth).

  • Neti neti ('not this, not this') is the Upaniṣadic method of negation used to indicate Brahman beyond predication.

  • Karma and rebirth form the background problem; the Upaniṣads seek mokṣa through knowledge (jñāna), not merely ritual.

  • Śruti is authoritative for the Upaniṣads; reason (tarka) and experience are subordinate but used by commentators.

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Charvaka

  • Cārvāka/Lokāyata is India's materialist school; it accepts only pratyakṣa (perception) as a valid pramāṇa.

  • It rejects an afterlife, karma, rebirth, and the authority of the Vedas; consciousness is an emergent product of matter.

  • The four elements (earth, water, fire, air) are held to be the constituents of reality; no fifth element or soul-substance.

  • Its ethics is often summarized as 'eat, drink, and be merry'-hedonism tied to the denial of post-mortem consequences.

  • Its epistemology is often called 'sophisticated' in that it accepts inference only when tied to perceived particulars.

  • Bṛhaspati is the legendary founder; the school survives mainly through hostile summaries by its opponents.

  • Its critique of inference (vyāpti being unperceivable) prefigures later debates on induction.

  • The name Lokāyata means 'that which pertains to the ordinary world'.

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Jainism and Buddhism

  • Jainism's anekāntavāda (many-sidedness) leads to syādvāda (sevenfold predication) and nayavāda (standpoint theory).

  • Ahiṃsā is Jainism's central ethical principle, applied to all living beings; mahāvratas are the five great vows for monks.

  • Jainism's two substances: jīva (conscious, many) and ajīva (non-conscious); bondage is due to karma as material particles.

  • Buddhism's Four Noble Truths: suffering, its arising, its cessation, and the path; the Eightfold Path is the fourth.

  • Pratītyasamutpāda (dependent origination) replaces substance with conditioned arising; anātman (no-self) denies a permanent soul.

  • The Buddha's three marks: anicca (impermanence), dukkha (unsatisfactoriness), anattā (no-self).

  • Buddhist schools: Theravāda (Pāli canon), Mahāyāna (Nāgārjuna's Mādhyamaka, Yogācāra), Vajrayāna.

  • Jainism's kevala-jñāna is omniscience attained by the liberated self; Buddhism's nirvāṇa is the extinguishing of craving.

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Nyaya and Vaisheshika

  • Nyāya is the school of logic and epistemology; its four pramāṇas: pratyakṣa, anumāna, upamāna, śabda.

  • Five-membered syllogism (pañcāvayava): pratijñā, hetu, udāharaṇa, upanaya, nigamana.

  • Fallacies (hetvābhāsa): savyabhicāra (deviating), viruddha (contradictory), satpratipakṣa (counterbalanced), asiddha (unproven), bādhita (falsified).

  • Vaiśeṣika's seven padārthas: dravya, guṇa, karma, sāmānya, viśeṣa, samavāya, abhāva (abhāva added later).

  • Vaiśeṣika's nine dravyas: earth, water, fire, air, ether, time, space, self, mind.

  • Paramāṇu (atom) theory: composite things reduce to indivisible atoms; samavāya is the relation binding wholes to parts.

  • Īśvara in Nyāya is the efficient cause of the world, argued from adṛṣṭa and from the order of creation.

  • Nyāya's theory of error is anyathākhyāti: error misplaces a real object, not a wholly unreal one.

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Samkhya and Yoga

  • Sāṃkhya's dualism: puruṣa (pure consciousness, plural) and prakṛti (primordial matter, one).

  • Prakṛti's three guṇas: sattva (clarity), rajas (activity), tamas (inertia); their disequilibrium produces the world.

  • Prakṛti evolves: mahat/buddhi, ahaṃkāra, manas, the five tanmātras, five mahābhūtas, five organs of action, five senses.

  • Liberation (kaivalya) is the isolation of puruṣa from prakṛti, achieved through discriminative knowledge (viveka).

  • Yoga's eight limbs: yama, niyama, āsana, prāṇāyāma, pratyāhāra, dhāraṇā, dhyāna, samādhi.

  • Yoga accepts Īśvara as a special puruṣa, not as creator; Patañjali's Yoga Sūtra is the foundational text.

  • Citta-vṛtti-nirodha is Patañjali's definition of yoga in YS 1.2.

  • Kleśas (afflictions): avidyā, asmitā, rāga, dveṣa, abhiniveśa.

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Mimamsa and Vedanta (Advaita, Vishishtadvaita, Dvaita)

  • Mīmāṃsā is ritual exegesis; its central concern is dharma as Vedic injunction, and it accepts the eternality of the Vedas.

  • Mīmāṃsā's pramāṇas are pratyakṣa, anumāna, upamāna, śabda, arthāpatti, and (later) anupalabdhi.

  • Kumārila Bhaṭṭa and Prabhākara are the two Mīmāṃsā sub-schools, differing on error and on the theory of knowledge.

  • Śaṅkara's Advaita: Brahman alone is real; the world is māyā; jīva is non-different from Brahman; mokṣa is knowledge.

  • Advaita's two levels of truth: pāramārthika (absolute) and vyāvahārika (empirical); error is anirvacanīya-khyāti.

  • Rāmānuja's Viśiṣṭādvaita: Brahman is qualified by cit and acit as its body; bhakti and prapatti lead to mokṣa.

  • Madhva's Dvaita: five real differences (pañcabheda) between God and souls, God and matter, souls and matter, souls, and matter.

  • Vedānta's prasthāna-trayī: Upaniṣads, Bhagavadgītā, and the Brahma Sūtras.

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Western Philosophy: Ancient and Medieval

  • Presocratics: Thales (water), Anaximander (apeiron), Heraclitus (flux), Parmenides (being), Democritus (atoms).

  • Plato's theory of Forms: particulars participate in eternal, non-physical Forms; the Form of the Good is highest.

  • Plato's divided line and allegory of the cave distinguish eikasia, pistis, dianoia, and noēsis.

  • Aristotle's four causes: material, efficient, formal, final; his ten categories and syllogistic logic.

  • Aristotle's virtue ethics: eudaimonia via habituation of character; the mean between excess and deficiency.

  • Hellenistic schools: Stoicism (logos, apatheia), Epicureanism (ataraxia, pleasure as absence of pain), Skepticism (epochē).

  • Medieval synthesis: Augustine (faith and reason, illumination), Aquinas (five ways, natural law), and the problem of universals.

  • Ockham's razor and nominalism deny real existence to universals outside the mind.

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Modern Western Philosophy: Rationalism and Empiricism

  • Rationalism: Descartes, Spinoza, Leibniz-reason is the primary source of knowledge; innate ideas are affirmed.

  • Descartes' method of doubt reaches cogito ergo sum; mind–body dualism and the ontological argument for God.

  • Spinoza's monism: one substance, God or Nature; freedom is knowledge of necessity; conatus is the striving to persist.

  • Leibniz: monads are windowless simple substances; pre-established harmony; this is the best of all possible worlds.

  • Empiricism: Locke, Berkeley, Hume-experience is the source of ideas; the mind is a tabula rasa.

  • Locke's primary vs secondary qualities; Berkeley's esse est percipi denies matter; Hume's fork of relations of ideas vs matters of fact.

  • Hume: causation is constant conjunction plus custom; the self is a bundle of perceptions; induction lacks rational justification.

  • Kant's synthesis: synthetic a priori judgments; phenomena vs noumena; categories structure experience.

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Epistemology

  • Knowledge as justified true belief (JTB) is challenged by Gettier cases: justified true belief without knowledge.

  • Sources of knowledge: perception, reason, memory, testimony, introspection; internalism vs externalism about justification.

  • Foundationalism vs coherentism: basic beliefs vs mutual support among beliefs.

  • Rationalism vs empiricism concerns the origin of concepts; nativism vs tabula rasa.

  • Skepticism: Cartesian doubt, Hume's induction problem, and the regress argument (Agrippa's trilemma).

  • Truth theories: correspondence, coherence, pragmatic, and deflationary.

  • A priori vs a posteriori; analytic vs synthetic; necessary vs contingent-standard distinctions.

  • Reliabilism (Goldman): a belief is justified if produced by a reliable process; virtue epistemology centers on intellectual virtues.

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Metaphysics and Logic

  • Ontology: what exists; realism vs nominalism about universals; particulars vs properties.

  • Substance theories: Aristotelian hylomorphism, Cartesian dualism, Spinozistic monism, bundle theory (Hume).

  • Causation: regularity (Hume), counterfactual (Lewis), powers/dispositional accounts.

  • Modality: necessity, possibility, contingency; possible worlds semantics for modal logic.

  • Personal identity: psychological continuity (Locke, Parfit) vs bodily continuity vs soul criterion.

  • Categorical propositions A, E, I, O; square of opposition: contradictories, contraries, subcontraries, subalterns.

  • Validity vs soundness: an argument is valid if the conclusion follows from the premises; sound if valid and premises true.

  • Propositional connectives: negation, conjunction, disjunction, conditional, biconditional; truth tables define them.

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Ethics, Values and Applied Philosophy

  • Consequentialism judges acts by outcomes; utilitarianism (Bentham, Mill) maximizes aggregate welfare.

  • Deontology (Kant): act only on maxims universalizable; treat persons as ends, never merely as means.

  • Virtue ethics (Aristotle, MacIntyre): focus on character traits and practical wisdom (phronesis).

  • Kant's categorical imperative vs hypothetical imperative; the formula of humanity.

  • Mill's harm principle: interference with liberty is justified only to prevent harm to others.

  • Rawls' justice as fairness: veil of ignorance, original position, two principles of justice.

  • Applied ethics topics: abortion, euthanasia, animal rights, environmental ethics, bioethics, and AI ethics.

  • Metaethics: moral realism vs anti-realism; cognitivism vs non-cognitivism; emotivism and error theory.

Quick reference

Indian Philosophy: Origins

  • Ṛgvedic hymns (c. 1500–1200 BCE) are the earliest layer; the term darśana means 'seeing' and denotes a systematic viewpoint.

  • Six orthodox (āstika) schools accept Vedic authority: Nyāya, Vaiśeṣika, Sāṃkhya, Yoga, Mīmāṃsā, Vedānta.

  • Heterodox (nāstika) schools rejecting Vedic authority: Cārvāka, Jainism, Buddhism (and early materialist traditions).

  • Ṛta is the Vedic cosmic order; later abstracted as dharma, the regulating principle of ritual and moral action.

  • The Ṛgveda 10.129 (Nāsadīya) hymn poses creation as an open question, not a dogmatic answer.

  • Pūrva-mīmāṃsā concerns itself with dharma and Vedic injunction; Uttara-mīmāṃsā (Vedānta) concerns itself with Brahman.

  • Śruti (revealed: Vedas, Brāhmaṇas, Āraṇyakas, Upaniṣads) vs smṛti (remembered: epics, Purāṇas, Dharmaśāstra).

  • The Upaniṣads are the jñāna-kāṇḍa; the Brāhmaṇas are the karma-kāṇḍa of the Vedic corpus.