Ratnakīrti (11th century CE) was an Indian Buddhist philosopher of the
Yogācāra
Yogachara (, IAST: ') is an influential tradition of Buddhist philosophy and psychology emphasizing the study of cognition, perception, and consciousness through the interior lens of meditation, as well as philosophical reasoning (hetuvidyā). ...
and epistemological (''pramāṇavāda'') schools who wrote on logic,
philosophy of mind
Philosophy of mind is a branch of philosophy that deals with the nature of the mind and its relation to the Body (biology), body and the Reality, external world.
The mind–body problem is a paradigmatic issue in philosophy of mind, although a ...
and
epistemology
Epistemology is the branch of philosophy that examines the nature, origin, and limits of knowledge. Also called "the theory of knowledge", it explores different types of knowledge, such as propositional knowledge about facts, practical knowle ...
. Ratnakīrti studied at the
Vikramaśīla monastery in modern-day
Bihar
Bihar ( ) is a states and union territories of India, state in Eastern India. It is the list of states and union territories of India by population, second largest state by population, the List of states and union territories of India by are ...
. He was a pupil of
Jñānaśrīmitra, and Ratnakīrti refers to Jñānaśrīmitra in his work as his ''guru'' with phrases such as ''yad āhur guravaḥ''.
Ratnakīrti's work has been termed as "more concise and logical though not so poetical" compared to that of his teacher, although he does build on much of Jñānaśrīmitra's work.
Life

Ratnakīrti was active sometime between 1000 and 1050 CE. Among his contemporaries at
Vikramashila
Vikramashila ( IAST: ) was a Buddhist monastery situated in what is now modern-day Bihar in India. It was founded by King Dharmapala between the late eighth and early ninth century.
It was one of the three most important Buddhist Mahaviharas ...
were
Ratnākaraśānti and
Jñanasrimitra. Ratnakīrti engaged with both of them on an intellectual level and it is clear that Ratnakīrti was Jñānaśrīmitra's student on subjects relating to
logico-epistemological topics as the former often quotes the latter as his "''guru''".
With Ratnākaraśānti, the relationship was more complex as it is likely that Ratnakīrti was his pupil on topics related to
tantra
Tantra (; ) is an esoteric yogic tradition that developed on the India, Indian subcontinent beginning in the middle of the 1st millennium CE, first within Shaivism and later in Buddhism.
The term ''tantra'', in the Greater India, Indian tr ...
however Yuichi Kajiyama states that "Ratnākaraśānti learned Buddhism, exoteric and esoteric, under Ratnakīrti and others."
Philosophy
The problem of other minds
Ratnakīrti's "''Refutation of Other mindstreams''" (''Santānāntaradūṣaṇa'') argued that knowledge of external streams of consciousness (
citta-santāna
Mindstream (Pali: ''citta-santāna'', Sanskrit: ''citta-saṃtāna;'' Ch: ''xin xiangxu'' 心相續) in Buddhist philosophy is the moment-to-moment continuum of sense impressions and mental phenomena (Chitta (Buddhism), citta), which is also des ...
) is a form of inference (anumāna) and not direct perception (pratyakṣa). Ratnakīrti introduced the
two truths doctrine as key to the nature of the discussion. Since inference deals with conceptual universals, the proof of the mindstreams of others, while empirically valid in relative truth (saṃvṛtisatya), does not hold ultimate metaphysical certainty in absolute truth (paramārthasatya). Ratnakīrti, therefore, argued that at the ultimate level, there is only an undifferentiated
non-dual
Nondualism includes a number of philosophical and spiritual traditions that emphasize the absence of fundamental duality or separation in existence. This viewpoint questions the boundaries conventionally imposed between self and other, min ...
consciousness (''vijñānādvaita'') since one cannot differentiate consciousness as a whole into different individual minds.
[Chakrabarti, Arindam; Weber, Ralph]
Comparative Philosophy without Borders
New York: Bloomsbury Academic, 2015. pp 103–104.
Ratnakīrti states:
If one’s own mind is distinct from another by nature, it should appear together with a limiting object (avadhi) .e. another mind Nor should it be apprehended that ne’s own mindis identical with nother mind[Masahiro, Inami. ]
The Problem of Other Minds in the Buddhist Epistemological Tradition.
' Journal of Indian Philosophy 29: 465–483, 2001. c© 2001 Kluwer Academic Publishers. Printed in the Netherlands.
This means that any knowledge of a distinction between two things depends on perceiving two things (and seeing how they are different). However, we can only know our mind directly through perception. Therefore, one’s mind cannot be shown to be distinct from other minds, but they also cannot be shown to be identical, since this knowledge would be based on perceiving them as well.
According to Jan Westerhoff, the main point of Ratnakīrti's argument can be summarized as follows:
His key point is that mental events that occur in our mind do not specifically identify themselves as belonging to our own mental stream. The simple reflexivity of consciousness, which the Yogācārins accept, is not enough here. Neither consciousness being aware of itself, nor the fact that I consider my thoughts to be mine, is sufficient for making them mine; there needs to be some internal way of identifying them as mine and as not belonging to somebody else. Simply thinking of a thought that is mine will not be sufficient since another person will think the very same thing of their thought, and this will be theirs, not ours. Therefore, We would need a unique way of connecting each set of mental events with some unique identifier, like ‘JCW’s thought’, to regard them as mine. This kind of thought-tagging cannot just boil down to belonging to a specific set of mental events forming a maximally connected series, the standard Buddhist reductionist account of a person. This would not rule out solipsism, since if solipsism was true my thoughts would obviously belong to such a series, which would be the only one there is. Rather, the ‘JCW’ tag of each thought would need to be internally accessible, and distinguishable from the ‘ABC’ tag, the ‘DEF’ tag, and so on. But such branding of thoughts in terms of irreducibly distinct persons that have them is of course not possible within the Buddhist conception of the mind. If we are reductionists about persons, it seems, then we have to accept the consequence that we cannot really differentiate between different streams of consciousness.[Westerhoff, Jan (2018) ''The Golden Age of Indian Buddhist Philosophy'', pp. 164-165. (The Oxford History of Philosophy) Oxford University Press.]
Thus, Ratnakīrti argued that from an ultimate point of view, not only do the distinctions between a subject and object, disappear, but also distinctions between any and all individual subjects. Ratnakīrti's theory sees no logical foundation for individuating mindstreams, and so there are no boundaries between minds from the perspective of ultimate truth. Since this non-duality of mind only applies at the level of ultimate truth, Ratnakīrti does not think this invalidates the Mahayana path which is based on compassion for all beings (who do exist at the level of conventional truth as impermanent phenomena).
Furthermore, Ratnakīrti only argues that other mindstreams ''cannot be proven.'' He does ''not'' argue that one can prove the non-existence of other minds. He only disproves the possibility of inferring distinctions among minds.
Ratnakīrti's
monistic interpretation of
Yogācāra
Yogachara (, IAST: ') is an influential tradition of Buddhist philosophy and psychology emphasizing the study of cognition, perception, and consciousness through the interior lens of meditation, as well as philosophical reasoning (hetuvidyā). ...
is known as the ''Citrādvaitavāda'' school (the view of variegated non-duality) or ''Vijñānādvaitavāda'' school (the view of non-dual consciousness).
The ultimate existence
Ratnakīrti elaborates his concept of ultimate reality further in his “''Debating Multifaceted Nonduality''” (''Citrādvaitaprakāśavāda'').
[Patil 2009, p. 254.] The ultimate reality is the direct object of perception, the only object of consciousness which is not associated with mental construction (vikalpa).
It is what is consciously manifested (''
prakāśa'') in awareness and what is directly known by awareness.
According to Ratnakīrti's ''Citrādvaitaprakāśavāda,'' whatever is manifest to awareness is one single (eka), nondual (advaita) image.
Ratnakīrti further argues that this image is a complex, multifaceted and dynamic reality. Thus, it contains within it many sub-images or aspects, such as colors, tastes, and so on (covering all possible qualias). Thus it is a multifaceted nonduality (citradvaita), a single image with a myriad number of aspects.
This image is also reflexively self-aware and is thus not different from awareness or consciousness.
[Patil 2009, pp. 255-256.]
Thus, for Ratnakīrti, at the level of ultimate truth, there is nothing but a single multifaceted image which also includes self-awareness (svasamvedana).
This is the only thing that truly exists at the ultimate level of reality. This is the single ground of all individuation and conceptual constructions (out of which the individual mindstreams and myriad mental experiences are constructed).
All other objects that are not this non-dual self-aware manifestation (such as persons,
universals, concepts, the external world etc) can only be conventionally real (
samvrti).
Other views
Ratnakīrti's "''Refutation of Arguments Establishing Īśvara''" (''Īśvarasādhanadūṣaṇa'') argued against the Hindu concept of a
creator God
A creator deity or creator god is a deity responsible for the creation of the Earth, world, and universe in human religion and mythology. In monotheism, the single God is often also the creator. A number of monolatristic traditions separate a ...
. He wrote that it is not possible to establish Īśvara through inference as the Naiyāyikas did. The text begins with an explanation of the Nyāya belief system, followed by a criticism of inferences that establish an intelligent creator.
Ratnakīrti's "''Proof of Exclusion''" (''Apohasiddhi'') establishes a theory of exclusion that follows Dignāga's theory of the same. It explains how thoughts and perception become understood through inference, and it is a theory of definitions and meaning-making. There are three types of exclusion described in the text.
Works
Works attributed to Ratnakīrti include:
*''Apohasiddhi'' - This text focuses on the key theory of exclusion (
apoha) and defends his views on it from critics
*''Īśvarasādhanadūṣaṇa'' - This work critiques theories of a singular
creator deity
A creator deity or creator god is a deity responsible for the creation of the Earth, world, and universe in human religion and mythology. In monotheism, the single God is often also the creator. A number of monolatristic traditions separate a ...
, which Hindu thinkers call ''
Īśvara''.
*''Kṣaṇabhaṅgasiddhi'' (''Proving momentariness'') - Defends the theory of momentariness, the view that all dharmas (phenomena) last only for a moment.
*''Citrādvaitaprakāśavāda'' - The non-dual mind manifests awareness variously. This awareness takes the form of a single image, and the various aspects of the image comprise perception.
*''Pramāṇāntarbhāvaprakaraṇa'' - A work on epistemology (
pramana
''Pramana'' (; IAST: Pramāṇa) literally means " proof" and "means of knowledge". )
*''Vyāptinirṇaya'' - Inspired by the ''Vyāpticarcā'' of
Jñānaśrīmitra, it clarifies the main ideas about the limits of logical pervasion (''vyāpti'').
*''Santānāntaradūṣaṇa'' (''Refutation of Other mindstreams'')
*''Sarvajñasiddhi'' (Perfection of knowledge)
*''Sthirasiddhidūṣaṇa'' - A refutation of the idea that dharmas endure for longer than a moment
*''Udayanīrakaranam''
The works are compiled in ''Ratnakīrtinibandhāvali.''
[Thakur, Anantalal, ed. 1957. ''Ratnakīrti-nibandhāvalī: (Buddhist Nyāya Works of Ratnakīrti). Deciphered and ed.'' TSWS, Tibetan Sanskrit Works Series 3. Patna: K. P. Jayaswal Research Institute.]
See also
*
Dharmakīrti
*
Prajñākaragupta
*
Non-dualism
*
Yogācāra
Yogachara (, IAST: ') is an influential tradition of Buddhist philosophy and psychology emphasizing the study of cognition, perception, and consciousness through the interior lens of meditation, as well as philosophical reasoning (hetuvidyā). ...
*
Abhayakaragupta
*
Ānandagarbha
*
Atiśa
*
Drogmi
*
Jñanasrimitra
*
Haribhadra
*
Naropa
Nāropā (Prakrit; , Naḍapāda or Abhayakirti) was an Indian Buddhism, Buddhist Mahasiddha. He was the disciple of Tilopa and brother, or some sources say partner and pupil, of Niguma. As an Indian Mahasiddha, Naropa's instructions inform ...
*
Ratnākaraśānti
Notes
Sources
* McAllister, Patrick (2020). ''Ratnakīrti's Proof of Exclusion.'' Austrian Academy of Sciences Press. ISBN 9783700184003.
* McAllister, Patrick. "Ratnakirti and Dharmottara on the Object of Activity." Journal of Indian Philosophy; Dordrecht Vol. 42, Iss. 2-3, (Jun 2014): 309-326.
* Patil, Parimal G. (2009). ''Against a Hindu God: Buddhist Philosophy of Religion in India.'' New York: Columbia University Press. ISBN 978-0-231-14222-9.
* McDermott, A.C. (2012). ''An Eleventh-Century Buddhist Logic of 'Exists' Ratnakīrti's Kṣaṇabhaṅgasiddhiḥ Vyatirekātmikā''. Springer Nature. ISBN 9789401033879.
{{DEFAULTSORT:Ratnakirti
11th-century Buddhist monks
Buddhist logic
Buddhist writers
History of logic
Idealists
Indian scholars of Buddhism
Monks of Vikramashila
Yogacara