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Translations of
English emptiness,
Pali suññatā
Sanskrit śūnyatā, shunyata
(Dev: शून्यता)
Bengali শূন্যতা
Burmese thone nya ta, သုညတ
(rōmaji: )
Korean 공성(空性)
(RR: gong-seong)
Mongolian qoγusun
Tibetan སྟོང་པོ་ཉིད་
(Wylie: stong-pa nyid
THL: tongpa nyi

Sunyata, (Sanskrit, also śūnyatā, shunyata; Pali: suññatā) has been translated into English as emptiness, voidness, openness,[1] spaciousness, vacuity. This term has multiple meanings depending on its doctrinal context.

In Theravada Buddhism, suññatā often refers to the not-self (Pāli: anatta, Sanskrit: anātman)[note 1] nature of the five aggregates of experience and the six sense spheres. Suññatā is also often used to refer to a meditative state or experience.

In the Mahayana-based traditions, the term is used more generally to refer to a lack of inherent existence of all phenomena.


"Śūnyatā" (Sanskrit noun from the adj. śūnya or śhūnya: "zero, nothing") is usually translated as "emptiness". It is the noun form of the adjective "śūnya" (Sanskrit) which means "empty" or "void",[3] hence "empti"-"ness" (-tā).

Sunya comes from the root svi, meaning "hollow", plus -ta "-ness", therefore "hollow, hollowness". A common alternative term is "voidness".

This word is ultimately derived from the Proto-Indo European root k̑eu- which means 'to swell' and also 'to grow'.[4]

Development of the concept

Over time, many different philosophical schools or tenet-systems (Sanskrit: siddhānta)[5] have developed within Buddhism in an effort to explain the exact philosophical meaning of emptiness.

After the Buddha, emptiness was further developed by Nāgārjuna and the Mādhyamaka school, an early Mahāyāna school. Emptiness ("positively" interpreted) is also an important element of the Buddha nature literature, which played a formative role in the evolution of subsequent Mahāyāna doctrine and practice.

Pali Canon

A simile from the Pali scriptures (SN 22.95) compares form and feelings with foam and bubbles.

The Pali canon uses the term emptiness in three ways: "(1) as a meditative dwelling, (2) as an attribute of objects, and (3) as a type of awareness-release." [6] The Suñña Sutta,[7] part of the Pāli canon, relates that the monk Ānanda, Buddha's attendant asked,

It is said that the world is empty, the world is empty, lord. In what respect is it said that the world is empty?" The Buddha replied, "Insofar as it is empty of a self or of anything pertaining to a self: Thus it is said, Ānanda, that the world is empty.

According to Thanissaro Bhikku:

Emptiness as a quality of dharmas, in the early canons, means simply that one cannot identify them as one's own self or having anything pertaining to one's own self...Emptiness as a mental state, in the early canons, means a mode of perception in which one neither adds anything to nor takes anything away from what is present, noting simply, "There is this." This mode is achieved through a process of intense concentration, coupled with the insight that notes more and more subtle levels of the presence and absence of disturbance (see MN 121).[8]

Emptiness as a meditative state is said to be reached when "not attending to any themes, he [the bhikku] enters & remains in internal emptiness" (MN 122). This meditative dwelling is developed through the "four formless states" of meditation or Arūpajhānas and then through "themeless concentration of awareness."[6]

In the Kāmabhu Sutta S IV.293, it is explained that a bhikkhu can experience a trancelike contemplation in which perception and feeling cease. When he emerges from this state, he recounts three types of "contact" (phasso):

  1. "emptiness" (suññato),
  2. "signless" (animitto),
  3. "undirected" (appaihito).[9]

The meaning of emptiness as contemplated here is explained at M I.297 and S IV.296-97 as the "emancipation of the mind by emptiness" (suññatā cetovimutti) being consequent upon the realization that "this world is empty of self or anything pertaining to self" (suññam ida attena vā attaniyena vā).[10]

The term "emptiness" (suññatā) is also used in two suttas in the Majjhima Nikāya, in the context of a progression of mental states. The texts refer to each state's emptiness of the one below.[11]

Prajna-paramita Sutras

The Prajna-paramita (Perfection of Wisdom) Sutras taught that all entities, including dharmas, are only conceptual existents or constructs.[12][13]

Though we perceive a world of concrete and discrete objects, these objects are "empty" of the identity imputed by their designated labels.[14] The Heart sutra, a text from the prajnaparamita-sutras, articulates this in the following saying in which the five skandhas are said to be "empty":

Form is emptiness, emptiness is form
Emptiness is not separate from form, form is not separate from emptiness
Whatever is form is emptiness, whatever is emptiness is form.[15][note 2][note 3]


Mādhyamaka is a Mahāyāna Buddhist school of philosophy.[16] In Madhyamaka, to say that an object is "empty" is synonymous with saying that it is dependently originated.

Madhyamaka states that impermanent collections of causes and conditions are designated by mere conceptual labels. This also applies to the principle of causality itself, since everything is dependently originated.[17] If unaware of this, things may seem to arise as existents, remain for a time and then subsequently perish. In reality, dependently originated phenomena do not arise as having inherent existence in the first place.[18][note 4] Thus both existence and nihilism are ruled out.[19]


Madhyamaka is retroactively seen as being founded by the monk Nāgārjuna. Nāgārjuna's goal was to refute the essentialism of Abhidharma.[20] His best-known work is the Mūlamadhyamakakārikā, in which he used the reductio ad absurdum to show the non-substantiality of the perceived world.

Nāgārjuna equates emptiness with dependent origination:[21][note 5]

On the basis of the Buddha's view that all experienced phenomena (dharma) are "dependently arisen" (pratitya-samutpanna), Nagarjuna insisted that such phenomena are empty (sunya). This did not mean that they are not experienced and, therefore, non-existent; only that they are devoid of a permanent and eternal substance (svabhava). Since they are experienced elements of existence, they are not mere names (prjnapti).[22]

In his analysis, any enduring essential nature would prevent the process of dependent origination, or any kind of origination at all. For things would simply always have been, and will always continue to be, without any change.[23][note 6]

In doing so, he restores the Middle way of the Buddha, which had become influenced by absolute tendencies:[24]

Utilizing the Buddha's theory of "dependent arising" (pratitya-samutpanna) Nagarjuna demonstrated the futility of these metaphysical speculations. His method of dealing with such metaphysics is referred to as a "middle way"(madhyama pratipad). It is the middle way that avoided the substantialism of the Sarvastivadins as well as the nominalism of the Sautrantikas.[22]


The Prasangika is a sub-school of the Madhyamaka. The name is derived from prasanga, or reductio ad absurdum arguments, rather than svatantra-anumana, or independent syllogisms.

Buddhapalita (470–550), a commentator on the works of Nāgārjuna and Aryadeva, was a great master and exponent of the Prasangika system. Buddhapālita notes:

It is not that we claim non-existence, we merely remove claims for existing existents.

Candrakīrti states:

Since relativity is not objectively created, those who, through this reasoning, accept dependent things as resembling the moon in water and reflections in a mirror, understand them as neither objectively true nor false. Therefore, those who think thus regarding dependent things realize that what is dependently arisen cannot be substantially existent, since what is like a reflection is not real. If it were real, that would entail the absurdity that its transformation would be impossible. Yet neither is it unreal, since it manifests as real within the world.[25]


Svātantrika is a category of Madhyamaka viewpoints attributed primarily to the 6th century Indian scholar Bhavaviveka. It is used in contrast with Prāsangika Madhyamaka.

For the Svatantrika, conventional phenomena are understood to have a conventional essential existence, but without an ultimately existing essence.

Nihilism and eternalism

The Madhyamaka philosophy is often misunderstood as being nihilistic:

A nihilistic interpretation of the concept of voidness (or of mind-only) is not, by any means, a merely hypothetical possibility; it consistently was adopted by Buddhism's opponents, wherever the religion spread, nor have Buddhists themselves been immune to it...[26]

But this is not a correct understanding:

[V]oidness does not mean nothingness, but rather that all things lack intrinsic reality, intrinsic objectivity, intrinsic identity or intrinsic referentiality. Lacking such static essence or substance does not make them not exist —- it makes them thoroughly relative.[27]

Conversely, emptiness as described by Nāgārjuna has been interpreted, notably by Murti in his influential 1955 work, as a Buddhist absolute. This is now regarded as incorrect by many modern scholars and not grounded on textual evidence.[28] The consensus is that Nāgārjuna defended the classical Buddhist emphasis on phenomena.[clarification needed][29] For him, emptiness is explicitly used as a middle way between eternalism and nihilism, and that is where its soteriological power lies. It does not specifically refer to an ultimate, universal, or absolute nature of reality.[30] Holding up emptiness as an absolute or ultimate truth without reference to that which is empty is the last thing either the Buddha or Nāgārjuna would advocate.[31]

Nāgārjuna criticized those who conceptualized emptiness:[32]

The Victorious Ones have announced that emptiness is the relinquishing of all views. Those who are possessed of the view of emptiness are said to be incorrigible.

Understanding in various Buddhist traditions

The concept of sunyata has received a different emphasis in various Buddhist traditions. There is especially a difference between the Tibetan tradition, which endorses sunyata, and the Chinese Chán tradition, which has incorporated both the Madhyamika teachings and the Buddha-nature texts.


Theravada Buddhists generally take the view espoused in the Pali canon, that emptiness is merely the not-self nature of the five aggregates as well as a mode of perception which is "empty of the presuppositions we usually add to experience to make sense of it"[33] - especially that of unchanging selfhood. Therefore, Theravadan teachers like Thanissaro Bhikku hold that emptiness is not so much a metaphysical view, as it is a strategic mode of acting and of seeing the world which leads to liberation:

The idea of emptiness as lack of inherent existence has very little to do with what the Buddha himself said about emptiness. His teachings on emptiness — as reported in the earliest Buddhist texts, the Pali Canon — deal directly with actions and their results, with issues of pleasure and pain. To understand and experience emptiness in line with these teachings requires not philosophical sophistication, but a personal integrity willing to admit the actual motivations behind your actions and the actual benefits and harm they cause.[34]

Emptiness as an approach to meditation is seen as a state in which one is "empty of disturbance." This form of meditation is one in which the meditator becomes concentrated and focuses on the absence or presence of disturbances in their mind, if they find a disturbance they notice it and allow it drop away, this leads to deeper states of calmness.[34]

Emptiness is also seen as a way to look at sense experience that does not identity with the "I-making" and "my-making" process of the mind. As a form of meditation, this is developed by perceiving the six sense spheres and their objects as empty of any self, this leads to a formless jhana of nothingness and a state of equanimity.[34]


The class of Buddhist scriptures known as the "Buddha-nature" (tathāgatagarbha) sutras presents a seemingly variant understanding of emptiness, wherein the Buddha Nature, the Buddha and Liberation are seen as transcending the realm of the empty (i.e. of the conditioned and dependently originated). Some scholars, however, view such teachings as metaphorical, not to be taken literally. Other Buddhist monks/scholars disagree with this claim.[35]

The Tathāgatagarbha Sutras portray emptiness in a positive way. The Buddha nature genre of sutras can be seen as an attempt to state orthodox Buddhist teachings of dependent origination using positive language instead, to prevent people from being turned away from Buddhism by a false impression of nihilism.

In these sutras the perfection of the wisdom of not-self is stated to be the true self. The ultimate goal of the path is characterized using a range of positive language that had been used in Indian philosophy previously by essentialist philosophers, but which was now transmuted into a new Buddhist vocabulary to describe a being who has successfully completed the Buddhist path.[36]

They state that every living being has the potential to realize awakening. Hence Buddhism offers salvation to every-one, not only to monks or those who have freed themselves almost completely from karma in previous lives.

The Buddha-nature can also be understood as the primordial reality from which phenomenal reality springs or the changeless reality empty of only that which is other than itself. Some sutras, such as the Mahayana Angulimaliya Sutra, also insist that not everything is empty, for the Buddha Nature, and Liberation (moksha) are stated not to be empty.

Srimala Sutra

The Śrīmālā Sūtra is one of the earliest texts on tathagata-garbha thought. It is critical of a 'negative' understanding of emptiness.

The Śrīmālā Sūtra enunciates the idea that the Buddha nature is possessed of four guna-paramitas [qualities of perfection]: permanence, bliss, self, and purity. The Buddha-nature is ultimately identifiable as the supramundane nature of the Buddha. These elevated qualities make of the Buddha one to whom devotion and adoration could be given.[37]

Mahāparinirvāṇa Sūtra

The Mahāyāna Mahāparinirvāṇa Sūtra was an influential sutra in the development of the Buddha-nature thought. It played a crucial role in the development of Chinese Buddhism.[38]

The attainment of nirvanic liberation (mokṣa), by contrast with empty or selfless phenomena, is said to open up a realm of "utter bliss, joy, permanence, stability, [and] eternity",[39] in which the Buddha is "fully peaceful" [note 7] and "immovable" (acala) like a mountain.[note 8][40]

Scholarly opinions

According to some scholars, the Buddha nature which these sutras discuss, does not represent a substantial self (ātman). Rather, it is a positive expression of emptiness, and represents the potentiality to realize Buddhahood through Buddhist practices. In this view, the intention of the teaching of Buddha nature is soteriological rather than theoretical.[41][42] According to others, the potential of salvation depends on the ontological reality of a salvific, abiding core reality — the Buddha-nature, empty of all mutability and error, fully present within all beings.[43]

According to Matsumoto Shiro and Hakamaya Noriaki, the idea of an ontological reality of the Buddha-nature is an un-Buddhist idea:[42] Their "Critical Buddhism" approach rejects what it calls "dhatu-vada" (substantialist Buddha nature doctrines)

Buddhism is based on the principles of no-self and causation, which deny any substance underlying the phenomenal world. The idea of tathagata-garbha, on the contrary, posits a substance (namely, tathagata-garbha) as the basis of the phenomenal world. [Matsumoto Shiro] asserts that dhatu-vada is the object that the Buddha criticized in founding Buddhism, and that Buddhism is nothing but unceasing critical activity against any form of dhatu-vada.[44]

The critical Buddhism approach has, in turn, recently been characterised as operating with a restricted definition of Buddhism. Paul Williams comments:

At least some ways of understanding the tathagatagarbha contravene the teachings of not-Self, or the Madhyamika idea of emptiness. And these ways of understanding the tathagatagarbha were and are widespread in Mahāyāna Buddhism. Yet by their own self-definition they are Buddhist.[45]


Yogacara explains "emptiness" in an analysis of the way we perceive "things". Everything we conceive of is the result of the working of the five skandhas: form, perception, feeling, volition and discrimination.[note 9] The five skandhas together create consciousness. The "things" we are conscious of are "mere concepts", not 'das Ding an sich' or 'the thing in itself'.[46]

Tibetan Buddhism

Tibetan Buddhism developed five main schools. The Madhyamika philosophy obtained a central position in the Nyingma, Kagyu, Sakya and Gelugpa schools. The Jonang school, which until recently was thought to be extinct, developed a different interpretation of ultimate truth.


The Sakya school originated in the 11th century. It rose to power in the 13th century.[47]

Emptiness in Mādhyamaka has a second aspect. Through logical analyses it is shown that conceptual thought is dichotomizing yet "reality" (or lack of it) is free from all extremes. Gorampa Sonam Senge (1429-1489), an important philosopher in the Sakya school of Tibetan Buddhism who established one of the definitive Tibetan understandings of Prasangika, therefore makes his ultimate truth a liberating insight that is free from grasping the mind.[48]


The Jonang school originated in the 12th century. Tsongkhapa strongly opposed the Jonang school, whose views he "deemed to be [...] dharmically incorrect".[49]

In the Tibetan Jonang school, only the Buddha and the Buddha Nature are viewed as not intrinsically empty, but as truly real, unconditioned, and replete with eternal, changeless virtues.[50] The Buddha Nature (tathagatagarbha) is only empty of what is impermanent and conditioned, not of its own self. The Buddha Nature is truly real, and primordially present in all beings.

An important Tibetan treatise on Emptiness and the Buddha Nature is found in the scholar-monk Dolpopa's voluminous study, Mountain Doctrine.[35] It...

... follows the format, inherited from India, of a presentation by way of both reasoning and scripture - the sciptural citations being so rich that the book can also be considered an inspiring anthology, a veritable treasure-trove of literature about the matrix-of-one-gone-thus.[51]

In this vast Mountain Doctrine, Dolpopa describes the Buddha Nature as ...

[N]on-material emptiness, emptiness that is far from an annihilatory emptiness, great emptiness that is the ultimate pristine wisdom of superiors ...buddha earlier than all buddhas, ... causeless original buddha.[52]

The Buddha-nature is filled with eternal powers and virtues:

[P]ermanent, stable, eternal, everlasting. Not compounded by causes and conditions, the matrix-of-one-gone-thus is intrinsically endowed with ultimate buddha qualities of body, speech, and mind such as the ten powers; it is not something that did not exist before and is newly produced; it is self-arisen.'[53]

Dolpopa also cites the Angulimaliya Sutra's contrast between empty phenomena such as the moral and emotional afflictions (kleshas), which are like ephemeral hailstones, and the enduring, eternal Buddha, which is like a precious gem:

Empty phenomena are other [different]; non-empty phenomena are other [different]. The tens of millions of afflictive emotions like hail-stones are empty. The phenomena in the class of non-virtues, like hail-stones, quickly disintegrate. Buddha, like a vaidurya jewel, is permanent [...] The liberation of a buddha also is form [...] do not make a discrimination of non-division, saying, "The character of liberation is empty".'[54]


The Gelugpa school of Tibetan Buddhism is the most influential of the four Tibetan Buddhist schools. It was founded in the beginning of the 15th by Tsongkhapa (1357- 1419), who was "strongly scholastic in orientation and encouraged the study of the great Indian masters of philosophy".[49]

The 14th Dalai Lama, who generally speaks from the Gelugpa version of the Mādhyamaka-Prasaṅgika, states:

According to the theory of emptiness, any belief in an objective reality grounded in the assumption of intrinsic, independent existence is simply untenable.
All things and events, whether ‘material’, mental or even abstract concepts like time, are devoid of objective, independent existence [...] [T]hings and events are 'empty' in that they can never possess any immutable essence, intrinsic reality or absolute ‘being’ that affords independence.[55]


The Tibetan Yungdrung Bon-tradition regards the Ma Gyu, or Mother Tantra, as the highest tantra. Its views are close to Dzogchen.[56][57] It sees waking life as an illusion, from which we have to wake up, just as we recognize dreams to be illusions.[58] Sunyata is the lack of inherent existence.[59] The Mother Tantra uses ...

...examples, similes and metaphors that we can ponder in order to better understand this illusory nature of both dream and waking life".[60]

These "examples, similes and metaphors" ...

...stress the lack of inherent existence and the unity of experience and experiencer. In the sutra teachings we call this "emptiness," in tantra "illusion," and in Dzogchen "the single sphere."[59]

Chinese Buddhism

When Buddhism was introduced in China it was understood in terms of its own culture. Various sects struggled to attain an understanding of the Indian texts. The Tathāgatagarbha Sutras and the idea of the Buddha-nature were endorsed, because of the perceived similarities with the Tao, which was understood as a transcendental reality underlying the world of appearances. Sunyata at first was also understood as pointing to transcendental reality.[61] It took Chinese Buddhism several centuries to realize that sunyata does not refer to an essential transcendental reality underneath or behind the world of appearances.[61]


The influence of those various doctrinal and textual backgrounds is still discernable in Zen. Zen teachers still mention the Buddha-nature, but the Zen tradition also emphasizes that Buddha-nature is Sunyata, the absence of an independent and substantial "self".[61]

Influence on Advaita Vedanta

Gaudapada, who was strongly influenced by Buddhism, borrowed the concept of "ajāta" from Nagajurna's Madhyamaka philosophy,[62][63] which uses the term "anutpāda":[64]

  • "An" means "not", or "non"
  • "Utpāda" means "genesis", "coming forth", "birth"[65]

Taken together "anutpāda" means "having no origin", "not coming into existence", "not taking effect", "non-production".[66]

The Buddhist tradition usually uses the term "anutpāda" for the absence of an origin[62][64] or sunyata.[67] The term is also used in the Lankavatara Sutra.[68] According to D.T Suzuki, "anutpada" is not the opposite of "utpada", but transcends opposites. It is the seeing into the true nature of existence,[69] the seeing that "all objects are without self-substance".[70]

"Ajātivāda" is the fundamental philosophical doctrine of Gaudapada.[71] According to Gaudapada, the Absolute is not subject to birth, change and death. The Absolute is aja, the unborn eternal.[71] The empirical world of appearances is considered unreal, and not absolutely existent.[71]

Gaudapada's perspective is quite different from Nagarjuna.[72] Gaudapada's perspective is based on the Mandukya Upanishad.[72] In the Mandukya Karika, Gaudapada's commentary on the Mandukya Upanishad, Gaudapada sets forth his perspective. According to Gaudapada, Brahman cannot undergo alteration, so the phenomenal world cannot arise from Brahman. If the world cannot arise, yet is an empirical fact, then the world has to be an unreal[note 10] appearance of Brahman. And if the phenomenal world is an unreal appearance, then there is no real origination or destruction, only apparent origination or destruction. From the level of ultimate truth (paramārthatā) the phenomenal world is Maya.[72]

As stated in Gaudapada’s Karika Chapter II Verse 48:[73]

No jiva ever comes into existence. There exists no cause that can produce it. The supreme truth is that nothing ever is born.[74]

Alternate translations

  • Emptiness
  • Interdependence (Ringu Tulku)[75]
  • Openness
  • Transparency (Cohen)
  • Spaciousness
  • Thusness[76]

See also


  1. A common translation is "no-self", without a self, but the Pali canon uses anatta as a singular substantive, meaning "not-self".[2]
  2. Original: "Rupan śūnyatā śūnyatāiva rupan. Rupan na prithak śūnyatā śūnyatā na prithag rupan. Yad rupan sa śūnyatā ya śūnyatā tad rupan."
  3. The Five Skandhas are: Form, Feeling, Perceptions, Mental Formations and Consciousness.
  4. Chapter 21 of the Mūlamadhyamakakārikā goes into the reasoning behind this.[18]
  5. Mūlamadhyamakakārikā 24:18
  6. Nāgārjuna equates svabhāva (essence) with bhāva (existence) in Chapter 15 of the Mūlamadhyamakakārikā
  7. According Dharmakṣema's "Southern" version of the Mahāparinirvāṇa Sūtra
  8. According to the Sanskrit version
  9. Translations do differ, which makes a difference. Vijñāna can be translated as "consciousness", but also as "discernement".[46]
  10. C.q. "transitory"


  1. "The Tibetan Buddhism Reader", edited by Reginald A. Ray, page 96
  2. Bronkhorst 2009, p. 124.
  3. Monier-Williams, Sir Monier (2nd edn, 1899) A Sanskrit-English Dictionary. Reprinted Motilal Banarsidass, Delhi 1986: p.1085.
  4. Indo-European Lexicon. University of Texas
  5. Klein, Anne C. (1991). Knowing Naming & Negation a sourcebook on Tibetan, Sautrantika. Snowlion publications, ISBN 0-937938-21-1
  6. 6.0 6.1 MN 122. See, e.g., Maha-suññata Sutta: The Greater Discourse on Emptiness translated from the Pali by Thanissaro Bhikkhu," Retrieved on 30 July 2013 from "Access to Insight" at
  7. Bhikkhu 1997d.
  8. Thanissaro Bhikku, The Buddhist Religions: An Historical Introduction, P 96.
  9. SN 41.6. See, e.g., Thanissaro Bhikkhu (trans.) (2004), "SN 41.6 Kamabhu Sutta: With Kamabhu (On the Cessation of Perception & Feeling)," retrieved Feb 4 2009 from "Access to Insight" at
  10. MN 43 and SN 41.7. See, e.g., respectively, Thanissaro Bhikkhu (trans.) (2006), "MN 43 Mahavedalla Sutta: The Greater Set of Questions-and-Answers," retrieved Feb 4 2009 from "Access to Insight" at; and, Thanissaro Bhikkhu (trans.) (2004), "SN 41.7 Godatta Sutta: To Godatta (On Awareness-release)," retrieved Feb 4 2009 from "Access to Insight" at
  11. MN 121 and MN 122. See, e.g., respectively, Thanissaro (1997a) and Thanissaro (1997b).
  12. Williams, Paul. Buddhist Thought. Routledge, 2000, pages 68, 134-5.
  13. Williams, Paul. Mahayana Buddhism: The Doctrinal Foundations 2nd edition. Routledge, 2009, pages 52-3.
  14. Kalupahan 1994, p. 160-169.
  15. "The Heart Sutra Prajna Paramita Hrydaya Sutra". Retrieved 2013-02-04. 
  16. Williams, Paul (2000). Buddhist Thought Routledge, p140.
  17. Williams, Paul. Buddhist Thought. Routledge 2000, page 142.
  18. 18.0 18.1 Tsondru, Mabja. Ornament of Reason. Snow Lion Publications. 2011, pages 56-58, 405-417.
  19. Tsondru, Mabja. Ornament of Reason. Snow Lion Publications. 2011, pages 56-58, 405-417
  20. Wasler, Joseph. Nagarjuna in Context. New York: Columibia University Press. 2005, pgs. 225-263.
  21. Tsondru, Mabja. Ornament of Reason. Snow Lion Publications. 2011, pages 66-71, 447-477.
  22. 22.0 22.1 Kalupahana 1992, p. 120.
  23. Tsondru, Mabja. Ornament of Reason. Snow Lion Publications. 2011, pages 40-41, 322-333.
  24. Kalupahana 1994.
  25. Loizzo, Joseph. Nāgārjuna's Reason Sixty with Chandrakīrti's Commentary. Columbia University Press. 2007, pg. 196.
  26. Jackson 1993, p. 57.
  27. Foreword of Mother of the Buddhas by Lex Hixon, Quest Books, 1993, ISBN 0-8356-0689-9
  28. Jorge Noguera Ferrer, Revisioning Transpersonal Theory: A Participatory Vision of Human Spirituality. SUNY Press, 2002, page 102.
  29. Randall Collins, The Sociology of Philosophies: A Global Theory of Intellectual Change. Harvard University Press, 2000, pages 221-222.
  30. Jorge Noguera Ferrer, Revisioning Transpersonal Theory: A Participatory Vision of Human Spirituality. SUNY Press, 2002, pages 102-103.
  31. David J. Kalupahana, Nagarjuna: The Philosophy of the Middle Way. SUNY Press, 1986, page 49.
  32. Jorge Noguera Ferrer, Revisioning Transpersonal Theory: A Participatory Vision of Human Spirituality. SUNY Press, 2002, pages 102. The quote is from the Mūlamadhyamakakārikā.
  33. Thanissaro Bhikku, "Emptiness", Access to Insight, 8 March 2011, . Retrieved on 30 July 2013.
  34. 34.0 34.1 34.2 Thanissaro Bhikkhu. "The Integrity of Emptiness" Access to Insight, 5 June 2010, . Retrieved on 30 July 2013.
  35. 35.0 35.1 Hopkins 2006.
  36. Sallie B. King (1997),The Doctrine of Buddha Nature is Impeccably Buddhist. In: Jamie Hubbard (ed.), Pruning the Bodhi Tree: The Storm Over Critical Buddhism, Univ of Hawaii Press 1997, pp. 174-192. ISBN 0824819497
  37. Professor C.D. Sebastian, Metaphysics and Mysticism in Mahayana Buddhism, 2005, p. 21
  38. Lai & year unknown.
  39. Mahāyāna Mahāparinirvāṇa Sūtra, translated from the Tibetan version[citation needed]
  40. Dr. Hiromi Habata, Die Zentralasiatischen Sanskrit-Fragmente des Mahaparinirvana-Mahasutra, Indica et Tibetica Verlag, 2007, p. 87
  41. Heng-Ching Shih. "The Significance Of 'Tathagatagarbha' —- A Positive Expression Of Sunyata". 
  42. 42.0 42.1 King, Sallie B. "The Doctrine of Buddha Nature is Impeccably Buddhist. In: Jamie Hubbard (ed.), Pruning the Bodhi Tree: The Storm Over Critical Buddhism, Univ of Hawaii Press 1997, pp. 174-192. ISBN 0824819497" (PDF). 
  43. Yamamoto, Kosho (1975). Mahayanism, Tokyo: Karin Bunko, p.56
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