The Problem Some domains of human experience seem intensely private—pain, itching, fear, the experience of colour, memory, inner images, and desire. My pain happens to me; another person does not directly experience it exactly as I do. From this fact an obvious question arises: is a completely private language possible in which the meanings of words depend only on the speaker’s private experiences, and in which the criterion of correct or incorrect use is known only to that person? Later Wittgenstein raises this question through the private-language argument. His aim is not to prove that private experience does not exist. The issue is not the privacy of experience but the publicity of linguistic meaning. If I assign the sign “S” to a private sensation, and later check its correct use only by remembering the private sensation, how can a distinction remain between being correct and merely “seeming correct”? Wittgenstein’s famous beetle-in-a-box example illuminates the problem. Imagine that every person has a box, that only its owner can see what is inside, and that everyone calls what is inside a “beetle.” If public linguistic practice does not depend on comparing the objects inside the boxes, then the private object does not play a decisive role in determining the meaning of the word. The question of rule-following is connected with this dispute. Language is not merely a private list of signs; stability of meaning requires the possibility of correction, error, training, repetition, and public criteria. The distinction between “this use of the word seems right to me” and “this use is right” is necessary for the life of language. The problem of this chapter, therefore, is this: why is a completely private language difficult even while private experience is accepted? Does a public criterion deny the existence of private experience? How are words such as “pain” connected with the body, behaviour, and forms of life? And how can this question enter into dialogue with Nyāya, Buddhist and Mīmāṃsā thought and Mithila’s parallel tradition without declaring Indian debates about self, non-self, or perception identical with Wittgenstein’s private-language argument? Central Thesis The central thesis of this chapter is that private experience may be possible and real, but a wholly private rule-system of linguistic meaning cannot easily sustain itself independently. Meaning requires a practice in which a distinction between correct and incorrect use is possible, and this distinction cannot rest solely on a momentary private sensation or memory. The meaning of the word “pain” is not merely the secret naming of a private object called pain. A child learns the linguistic use of “pain” amid crying, injury, consolation, treatment, questions, memory, comparison, and social training. Private experience is part of the language-game; public criteria do not replace it. Wittgenstein’s objection is not a behaviourist denial that “there is no inner world.” He raises a question of linguistic grammar: how do words about inner experience become publicly meaningful? Parallel Philosophy preserves both privacy and publicity from this standpoint: an experience may belong to an individual; its linguistic claim is expressed within social rules; and factual or medical conclusions may require additional evidence. Table 29 — Private Experience and Public Language Level What is private? What is public? Philosophical conclusion Experience Direct experience of pain Use of the word “pain” Privacy is admissible A criterion of correct use is Sign A private sign is possible Memory alone is insufficient required Correct–incorrect distinction is Rule A formula may be in the mind Training / correction / practice public Behaviour Experience may be invisible Face / action / context Behaviour is part of the evidence A wholly private language is Language Individual style is possible Rules of shared understanding problematic Table 18.1 — Private experience and public linguistic criteria are not opposed; they belong to different levels. Principal Arguments First argument—the criterion of correct versus incorrect use becomes difficult in completely private naming. If “S” stands only for a private sensation and I later use memory to check whether this is the same sensation, no independent criterion remains for deciding whether my memory itself is mistaken. Second argument—the distinction between “seems right” and “is right” is a basic condition of rule-following. If the two become identical, the concept of a rule loses its force. Third argument—language is connected with training. A child learns words for pain when natural expressions—crying, withdrawing from injury, protecting the body—are connected with social vocabulary. Language does not take the place of private experience; it becomes its public expression. Fourth argument—the beetle-in-a-box example shows that the meaning of a public word need not depend on the identity of a secret private object. Even if there is something different in every box, the public use of “beetle” can continue, provided that the linguistic rules are shared. Fifth argument—the example does not mean that private objects do not exist. The issue is how much role a private object plays in the functioning of linguistic meaning. Private experience may exist, but treating it as the sole secret basis of a word’s meaning may be a philosophical confusion. Sixth argument—a statement of pain is not the same as a third-person description. “I am in pain” is often a direct expression of one’s experience; “he is in pain” may depend on behaviour, speech, circumstances, and medical evidence. Although their grammatical forms may look similar, their epistemic roles differ. Seventh argument—public criteria do not require experience itself to be publicly accessible. A doctor does not “see” my pain, but understands claims about pain through language, the body, tests, history, and behaviour. Eighth argument—the private-language debate is not a direct denial of a philosophical theory of the self. Wittgenstein does not give a metaphysical answer to the question “does the self exist or not?”; he clarifies the grammar of the use of mental terms. Ninth argument—the publicity of rule-following is not social majoritarianism. An entire society can be wrong about facts, but criteria of correct and incorrect linguistic use arise within shared practice. Factual truth then requires separate evidence. Tenth argument—linguistic privacy and secrecy are different matters. A code, personal diary, or self-created signs may be highly private, but if a person follows their rules consistently, those rules are nourished by previously learned linguistic practices or repeatable criteria. गजेन्द्र ठाकु र Pūrvapakṣa The first form of the pūrvapakṣa says that I have direct authority over my own pain; another person cannot know my experience in the same way. Why, then, should a private vocabulary for private experience be regarded as impossible? The second pūrvapakṣa says that a private diary, secret code, or personal symbols are in fact private language. A person makes the rules and understands them personally. The third pūrvapakṣa is the charge of behaviourism. If the meaning of mental terms is tied to public behaviour, does philosophy reduce inner experience to behaviour? The fourth pūrvapakṣa comes from an Indian perspective. Nyāya makes claims about the self and inner experience, Buddhist philosophy about momentary consciousness and non-self, and Yoga and other traditions about introspection. It would therefore be improper to use the private-language argument to dismiss all these traditions as linguistic confusion. Uttarapakṣa Reply to the first pūrvapakṣa—the privacy of direct experience is accepted. The dispute is not about that fact, but about the claim that private experience alone can provide stable rules of linguistic meaning. Reply to the second pūrvapakṣa—a secret code is not a completely private language if its signs, repetition, memory, sequence, and rules depend on previously learned linguistic practices. Secrecy is not the absence of a public rule-structure. Reply to the third pūrvapakṣa—Wittgenstein does not make behaviour a metaphysical substitute for experience. Body, response, and context are part of the grammar of mental terms; private experience remains real. Reply to the fourth pūrvapakṣa—Indian debates about self/non-self or perception are distinct philosophical projects. Parallel Philosophy uses the private-language debate only as a question about linguistic criteria, not as a final judge of Indian theories. Indian Dialogue Nyāya philosophy analyses knowledge of inner states and such qualities as self, manas, pleasure and pain, desire and aversion. The philosophical reality of private experience is explicitly accepted here. Wittgenstein’s private-language argument does not negate this metaphysics; it asks only how the language of these experiences acquires public meaning. Buddhist philosophy questions a permanent self, while analysing experiential components such as vedanā, saṃjñā, saṃskāra, and vijñāna. Here, “experience is private” and “a permanent self exists” are not the same claim—a distinction that can ground a careful dialogue with the modern private-language debate. Mīmāṃsā emphasizes the social and śāstric rules of linguistic use, sentence meaning, intention, and traditional training. The question of public rules of meaning is open to dialogue here, although Mīmāṃsā’s injunction-centred aim is different. Even if Indian claims concerning yogic perception or special introspection are accepted, their linguistic presentation in public philosophical debate requires criteria of evidence, definition, and opposition. Private experience is not automatically proof of a public theory. The conclusion of the Indian dialogue is that inner experience, self, non-self, manas, vedanā, and language belong to different levels of inquiry. The parallel method does not forcibly reduce one to another. Mithila’s Parallel Perspective Mithila’s Navya-Nyāya tradition provides a discipline for clarifying the object, type, cause, and limit of a knowledge-claim. The evidential structures of a first-person statement such as “I am in pain” and a third-person statement such as “he is in pain” may differ; Parallel Philosophy gives special importance to this distinction. In Mithila’s social life, experiences such as illness, childbirth, labour, grief, fear, women’s experience, caste humiliation, or migrant loneliness are often private or insufficiently heard. Public linguistic discipline does not mean that an experience absent from majority language is unreal. On the contrary, whether a linguistic system provides adequate words to express marginalized experience is an ethical question. Dignity-based ethics respects testimony about private experience. Another person’s suffering should not be denied by saying “I cannot see it”; yet public policy, justice, or medicine may require other evidence alongside personal testimony. The parallel approach to history adopts the same lesson. Oral memory or a private diary may be an important source, but its meaning should be tested against language, period, context, and other sources. Private testimony is valuable; it is not exempt from criticism. For Maithili philosophical language this chapter suggests an important task: develop a subtle vocabulary for inner experience, but do not leave the meanings of words solely to an author’s private experience. Stabilize meaning through definition, examples, use, and public dialogue. Parallel maxim—accept the privacy of experience; understand the sociality of meaning; listen to testimony; examine evidence; and do not turn public criteria into the tyranny of the majority. Table 30 — From Private Experience to Public Meaning Experience Natural expression Training Rule Dialogue Knowledge Others can Claim + appropriate Pain / fear / colour Body / response Learning words Correct–incorrect use understand evidence Figure 18.2 — Private experience is expressed in language through public rules; publicity does not cancel experience. Contemporary Applications In medicine, the measurement of pain is a direct example of private experience and public criteria. A patient says, “my pain is 8/10”; the doctor reads this together with the body, medical history, tests, and response to treatment. The scale does not replace private experience; it is an instrument of communication. In the language of mental health, experiences such as sadness, fear, panic, and trauma are not fully available to external observation. Yet public dialogue becomes possible through shared questionnaires, clinical language, self-description, and behaviour. In artificial intelligence, a machine may say “I am sad” or “I experience pain.” The private-language debate asks: what are the criteria governing the human use of these words, and which behavioural-functional rules does the machine actually satisfy? Linguistic imitation does not by itself prove inner experience. AI emotion-recognition systems label a person “sad,” “angry,” or “afraid” from face or voice. Private experience cannot simply be equated with public behaviour; therefore such outputs should be treated as probabilistic inferences, not final truths. In law, private experiences such as pain, fear, consent, and mental state enter as evidence. A judicial system can respect personal testimony while testing it against circumstantial, medical, documentary, or other evidence. गजेन्द्र ठाकु रक समानान्तर दर्शन — खण्ड २ In social justice, the experiences of marginalized groups should not be dismissed by saying “I do not see anything like that.” Private or group experience may be an important source of public knowledge; questions of representation, diversity, and evidence nevertheless remain open. In digital privacy, the private-language debate has a distinct application: private data, private experience, and private language are not the same thing. Privacy rights are protected through public rules; privacy is not opposed to social rules. Chapter Conclusion The private-language argument does not deny the existence of private experience. Wittgenstein’s question concerns the criterion of linguistic meaning: in a completely private rule-system, how can a distinction between being correct and merely “seeming correct” be possible? Mental terms such as “pain” acquire meaning within public training, natural expression, social behaviour, and forms of life. Private experience is the subject of this linguistic web, not something replaced by it. The beetle-in-a-box example shows that the meaning of a public word need not depend on the identity of a secret private object. Dialogue with Nyāya, Buddhist, Mīmāṃsā, and other Indian traditions opens distinct questions concerning inner experience, self, manas, vedanā, and verbal testimony; it does not establish historical identity. Mithila’s parallel perspective accords dignity to private testimony, develops public language, and requires plurality of evidence for public decisions. The chapter’s final maxim—“Private experience need not be condemned to silence; public language is not the enemy of private experience. Meaning is formed in shared rules, while experience may occur within the individual.”