WBCHSE HS Philosophy common mistakes
WBCHSE HS Philosophy · Understand the traps and how to avoid them.
Writing that Cārvāka accepts inference as a valid pramāṇa, then contradicting it by saying perception is the only pramāṇa in the next paragraph.
Candidates memorise 'Cārvāka = materialism' and 'Cārvāka = perception only' as separate slogans without connecting them, so the two claims collide when written out at length. The subtle point that some Cārvākas allow inference only for worldly, verifiable matters is lost.
What to do instead
Write a one-line position statement before answering: Cārvāka accepts pratyakṣa alone as ultimately authoritative; inference is at best a practical convenience and is rejected as a source of knowledge of transcendent matters such as ātman, rebirth, or dharma. Then make every sentence consistent with that line.
Treating Nyāya and Vaiśeṣika as the same school, or listing Nyāya's sixteen padārthas as if they were Vaiśeṣika's categories.
The two are conventionally taught together as 'Nyāya-Vaiśeṣika', so candidates blur the pramāṇa theory of Nyāya with the ontological category list of Vaiśeṣika and mislabel the sixteen padārthas of the Nyāya-sūtra.
What to do instead
Keep two separate lists in your notes: Nyāya = sixteen padārthas including pramāṇa, prameya, saṃśaya, prayojana, and the four pramāṇas (pratyakṣa, anumāna, upamāna, śabda); Vaiśeṣika = seven categories (dravya, guṇa, karma, sāmānya, viśeṣa, samavāya, abhāva). Quote the list by name in the answer.
Explaining Sāṃkhya's puruṣa and prakṛti as mind and matter, then describing kaivalya as union with God.
English translations ('spirit' and 'nature') invite a Western mind-body reading, and the word yoga in the neighbouring school suggests union with the divine. Sāṃkhya is in fact dualistic and non-theistic in its classical form.
What to do instead
Define puruṣa as pure, inactive consciousness and prakṛti as the unconscious material first cause of the three guṇas; kaivalya is the isolation of puruṣa from prakṛti through discriminative knowledge (viveka), not union with anything. Explicitly note that classical Sāṃkhya does not require Īśvara, whereas Yoga adds one.
Describing Śaṅkara's māyā as 'the world is unreal, so nothing matters', and then failing to distinguish vivarta-vāda from pariṇāma-vāda.
The shorthand 'illusion' is repeated in textbooks without the technical apparatus of adhyāsa, avidyā, and sublation (bādha), so candidates cannot explain why Advaita calls the world mithyā rather than utterly non-existent.
What to do instead
State the three-tier analysis: Brahman is satya, the world is mithyā (dependent and sublatable, not zero), and the rope-snake example shows error as superimposition. Contrast this with Rāmānuja's pariṇāma, where the world is a real transformation of Brahman's body, and mention the seven-fold irreducibility of error only if you can state it correctly.
Answering a Mīmāṃsā question by saying it accepts an omnipotent creator God, or by attributing the doctrine of svataḥ-prāmāṇya to Nyāya.
Pūrva Mīmāṃsā's atheism and its theory of intrinsic validity of knowledge are unusual positions that get flattened into 'all Indian schools believe in God and in external verification'.
What to do instead
Memorise the contrast pair: Mīmāṃsā holds svataḥ-prāmāṇya (validity is intrinsic and self-established; invalidity is detected externally), while Nyāya holds parataḥ-prāmāṇya (validity is established by external confirmation). Add that Kumārila rejects a creator and grounds dharma in the beginningless Veda and in apūrva.
Using 'rationalism' and 'empiricism' as loose labels, e.g. calling Locke a rationalist because he discusses reason, or saying Hume is a rationalist because he uses deduction.
Candidates learn the labels by association with individual philosophers rather than by the criterion that separates them: the origin of substantive knowledge in reason versus experience.
What to do instead
Fix the criterion first: rationalism = reason alone can yield substantive knowledge of reality, with innate ideas or a priori necessity (Descartes, Spinoza, Leibniz); empiricism = all content of knowledge derives from experience, with the mind contributing only operations on that content (Locke, Berkeley, Hume). Test each claim against the criterion before naming the label.
Stating Hume's problem of induction as 'induction is false' or 'Hume says science is irrational', and then offering no distinction between deduction and induction in the same answer.
The conclusion is memorised as a slogan, and candidates have not grasped that Hume's point is about justification: no non-circular argument can establish the uniformity of nature.
What to do instead
Write the argument as a three-step structure: (i) all inductive inference presupposes that the future resembles the past; (ii) that principle cannot be known a priori, since its denial is conceivable; (iii) it cannot be known a posteriori without circularity. Conclude that induction is a natural habit or custom, not a demonstrable proof, and distinguish this from the separate logical point that inductive conclusions are only probable.
Describing Descartes' cogito as a proof of the existence of the external world, or as a syllogism from 'everything thinks' to 'I think'.
The meditations are summarised as 'I think therefore I am, so the world exists', collapsing the order of the Meditations and missing the role of the clear and distinct perception rule and of God's veracity.
What to do instead
Keep the sequence explicit: universal doubt, the cogito as an indubitable intuition of my own existence as a thinking thing, then the criterion of clear and distinct ideas, then the proofs of God, and only then the recovery of the external world. Note that the cogito is performed as an intuition, not inferred from a general premise.
Answering a free will question by listing compatibilism, libertarianism, and determinism without ever defining determinism or stating which premise of the problem each position denies.
The three labels are memorised as a set with no logical skeleton, so the answer names positions but never shows how they resolve the tension between universal causation and moral responsibility.
What to do instead
Set out the problem as two premises plus a conclusion: every event is causally determined; if so, no one could have acted otherwise; if no one could have acted otherwise, no one is morally responsible. Then show hard determinism accepts both premises, libertarianism denies the first, and compatibilism denies the second by redefining freedom as acting on one's own desires without external constraint.
Evaluating a categorical syllogism by the truth of its premises or by the figure alone, without checking mood, distribution, and the fallacies of illicit process or undistributed middle.
Everyday reasoning treats 'sounds true' as 'is valid', and candidates memorise the figures as diagrams rather than as rules governing the distribution of terms.
What to do instead
Work a fixed checklist on every syllogism: identify mood and figure; check the middle term is distributed at least once; check no term is distributed in the conclusion but undistributed in the premise; check for two negative premises or a negative premise with an affirmative conclusion. State validity as a matter of form, and assess truth of premises separately.