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Vaiśeṣika Sūtra, (Sanskrit: वैशेषिक सूत्र), also called Kanada sutra, is an ancient Sanskrit text at the foundation of the Vaisheshika school of Hindu philosophy. The sutra was authored by the Hindu sage Kanada, also known as Kashyapa. According to some scholars, he flourished before the advent of Buddhism because the Vaiśeṣika Sūtra makes no mention of Buddhism or Buddhist doctrines; however, the details of Kanada's life are uncertain, and the Vaiśeṣika Sūtra was likely compiled sometime between 6th and 2nd century BCE, and finalized in the currently existing version before the start of the common era.
A number of scholars have commented on it since the beginning of common era; the earliest commentary known is the Padartha Dharma Sangraha of Prashastapada. Another important secondary work on Vaiśeṣika Sūtra is Maticandra's Dasha padartha sastra which exists both in Sanskrit and its Chinese translation in 648 CE by Yuanzhuang.
The Vaiśeṣika Sūtra is written in aphoristic sutras style, and presents its theories on the creation and existence of the universe using naturalistic atomism, applying logic and realism, and is one of the earliest known systematic realist ontology in human history. The text discusses motions of different kind and laws that govern it, the meaning of dharma, a theory of epistemology, the basis of Atman (self, soul), and the nature of yoga and moksha. The explicit mention of motion as the cause of all phenomena in the world and several propositions about it make it one of the earliest texts on physics.
The name Vaiśeṣika Sūtra (Sanskrit: वैशेषिक सूत्र) is derived from viśeṣa, विशेष, which means "particularity", that is to be contrasted from "universality".  The classes particularity and universality belong to different categories of experience.
Till the 1950s, only one manuscript of Vaiseshika sutra was known and this manuscript was part of a bhasya by the 15th century Sankaramisra. Scholars had doubted its authenticity, given the inconsistencies in this manuscript and the quotes in other Hindu, Jaina and Buddhist literature claiming to be from the Vaisheshika Sutra. In the 1950s and early 1960s, new manuscripts of Vaiśeṣika Sūtra were discovered in distant parts of India, which were later identified as this Sutra. These newer manuscripts are quite different, more consistent with the historical literature, and suggests that, like other major texts and scriptures of Hinduism, Vaiśeṣika Sūtra too suffered interpolations, errors in transmission and distortion over time. A critical edition of the Vaiśeṣika Sūtra is now available.
The Vaisheshika Sutras mention the doctrines of competing schools of Indian philosophy such as Samkhya and Mimamsa, but make no mention of Buddhism, which has led scholars in more recent publications to posit estimates of 6th to 2nd century BCE.
The critical edition studies of Vaisheshika Sutras manuscripts discovered after 1950, suggest that the text attributed to Kanada existed in a finalized form sometime between 200 BCE and the start of the common era, with the possibility that its key doctrines are much older. Multiple Hindu texts dated to the 1st and 2nd century CE, such as the Mahavibhasa and Jnanaprasthana from the Kushan Empire, quote and comment on Kanada's doctrines. Although the Vaisheshika Sutras makes no mention of the doctrines of Jainism and Buddhism, their ancient texts mention Vaisheshika Sutras doctrines and use its terminology, particularly Buddhism's Sarvastivada tradition, as well as the works of Nagarjuna.
Physics and Philosophy
Physics is central to Kaṇāda’s assertion that all that is knowable is based on motion. His ascribing centrality to physics in the understanding of the universe also follows from his invariance principles. For example, he says that the atom must be spherical since it should be the same in all dimensions.  He asserts that all substances are composed of atoms, two of which have mass and two are massless.
Now an explanation of dharma,
—Vaisheshika Sutra, Transl: Klaus Klostermaier
The philosophy in Vaiseshika sutra is atomistic pluralism, states Jayatilleke. Its ideas are known for its contributions to "inductive inference", and often coupled with the "deductive logic" of the sister school of Hinduism called the Nyaya. James Thrower and others call Vaiśeṣika philosophy to be naturalism, one that rejects the supernatural.
The text states:
- There are nine constituents of realities: four classes of atoms (earth, water, light and air), space (akasha), time (kāla), direction (disha), infinity of souls (Atman), mind (manas).
- Every object of creation is made of atoms (parmanu) which in turn connect with each other to form molecules (anu). Atoms are eternal, and their combinations constitute the empirical material world.
- Individual souls are eternal and pervade material body for a time.
- There are six categories (padārtha) of experience — substance, quality, activity, generality, particularity, and inherence.
Several traits of substances (dravya) are given as colour, taste, smell, touch, number, size, the separate, coupling and uncoupling, priority and posterity, comprehension, pleasure and pain, attraction and revulsion, and wishes. Like many foundational texts of classical schools of Hindu philosophy, God is not mentioned in the sutra, and the text is non-theistic.
- In the first chapter, Kanada opens his Sutra with definitions of Dharma, the importance of the Vedas and his goals. The text, states Matilal, then defines and describes three categories and their causal aspects: substance, quality and action. He explains their differences, similarities and relationships between these three. The second part of first chapter defines and explains a universal, a particular (viśeṣa,) and their hierarchical relationship. Kanada states that it is from combination of particulars that some universals emerge.
- The second chapter of the Vaisheshika Sutras presents five substances (earth, air, water, fire, space) each with a distinct quality. Kanada argues that all except "air and space" is verifiable by perception, while existence of invisible air is established by inference (air blows, and that there must be a substance that affects the touch sensation to the skin; space, he argues, is inferred from one's ability to move from one point to another unhindered - a point he revises in later part of the text by asserting that sound is perceived and proves space).
- In the third chapter, Kanada states his premises about Atman (self, soul) and its validity.
- In the fourth chapter discusses the body and its adjuncts.
- In the fifth chapter action connected with the body and action connected with the mind are investigated. The text defines and discusses Yoga and Moksha, asserting that self-knowledge (atma-saksatkara) is the means to spiritual liberation. In this chapter, Kanada mentions various natural phenomena such as the falling of objects to ground, rising of fire upwards, the growth of grass upwards, the nature of rainfall and thunderstorms, the flow of liquids, the movement towards a magnet among many others; he then attempts to integrate his observations with his theories, and classifies phenomenon into two: those caused by volition, and those caused by subject-object conjunctions.
- In the sixth chapter puṇya (virtue) and pāpa (sin) are examined both as moral precepts and as discussed in the Vedas and Upanishads.
- In the seventh chapter discusses qualities such as color and taste as a function of heat, time, object and subject. Kanada dedicates a significant number of Sutras to his theory and importance of measurement.
- In the eighth chapter, Kanada dwells on nature of cognition and reality, arguing that cognition is a function of the object (substance) and subject. Some sutras are unclear, such as one on Artha, which Kanada states is applicable only to "substance, quality and action" per his chapter one.
- In the ninth chapter, Kanada discusses epistemology, particularly the nature of perception, inference and human reasoning process.
- In the final tenth chapter, the text focuses on soul, it attributes and threefold causes. Kanada asserts that human happiness and suffering is linked to ignorance, confusion and knowledge of the soul. He develops his theories of efficient cause, karma, body, mind, cognition and memory to present his thesis. He mentions meditation as a means of soul knowledge.
- The later texts of the Vaisesika school expanded and revised some of these ideas, categories and theories, as did scholars of Jainism, Buddhism and other Hinduism schools.
- Constance Jones; James D. Ryan (2006). Encyclopedia of Hinduism. Infobase. pp. 317–318. ISBN 978-0-8160-7564-5.
- Karl H. Potter (1977). Indian Metaphysics and Epistemology: The Tradition of Nyāya-Vaiśeṣika Up to Gaṅgeśa. Motilal Banarsidass. pp. 211–212. ISBN 978-81-208-0309-1.
- Andrew Nicholson (2013), Unifying Hinduism: Philosophy and Identity in Indian Intellectual History, Columbia University Press, ISBN 978-0231149877, pages 2–5
- Bart Labuschagne & Timo Slootweg 2012, p. 60, Quote: "Kanada, a Hindu sage who lived either around the 6th or 2nd century BCE, and who founded the philosophical school of Vaisheshika..
- Jeaneane D. Fowler 2002, pp. 98–99.
- Lal, Mohan. Encyclopaedia of Indian Literature: Sasay to Zorgot, Volume 5. P. 3968. ISBN 9993154229.
- Emmie te Nijenhuis (1977). Musicological literature. Harrassowitz. pp. 53–54. ISBN 978-3-447-01831-9.
- Jeaneane D. Fowler 2002, pp. 98-99.
- H. Margenau 2012, p. xxx-xxxi.
- Bimal Krishna Matilal 1977, p. 54.
- Chandradhar Sharma (2000). A Critical Survey of Indian Philosophy. Motilal Banarsidass. p. 175. ISBN 978-81-208-0365-7.
- Bimal Krishna Matilal 1977, pp. 62-63.
- Bimal Krishna Matilal 1977, p. 63.
- Bimal Krishna Matilal 1977, p. 53.
- Analytic Philosophy in Early Modern India J Ganeri, Stanford Encyclopedia of Philosophy (2014);
Naturalism in Classical Indian Philosophy, A Chatterjee, Stanford Encyclopedia of Philosophy (2012)
- Jeaneane D. Fowler 2002, p. 98.
- Bimal Krishna Matilal 1977, pp. 56-59.
- Translation of critical edition of Vaiśeṣika Sūtra: John Wells (2009), The Vaisheshika Darshana, Darshana Press; Discussion: Shyam Ranganathan (2007). Ethics and the History of Indian Philosophy. Motilal Banarsidass. pp. 344–348. ISBN 978-81-208-3193-3.
- On yoga and moksha in Vaisesika Sutras: Johannes Bronkhorst (1993). The Two Traditions of Meditation in Ancient India. Motilal Banarsidass. p. 64. ISBN 978-81-208-1114-0.
- Wilhelm Halbfass (1992). On Being and What There Is: Classical Vaisesika and the History of Indian Ontology. State University of New York Press. p. 272. ISBN 978-0-7914-1178-0.
- Bimal Krishna Matilal 1977, pp. 55-56.
- Wilhelm Halbfass (1992). On Being and What There Is: Classical Vaisesika and the History of Indian Ontology. State University of New York Press. pp. 79–80. ISBN 978-0-7914-1178-0.
- Bimal Krishna Matilal 1977, p. 55.
- Johannes Bronkhorst (2006). Patrick Olivelle (ed.). Between the Empires: Society in India 300 BCE to 400 CE. Oxford University Press. pp. 283–294. ISBN 978-0-19-977507-1.
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- Kak, S. Kaṇāda, Great Physicist and Sage of Antiquity. https://medium.com/@subhashkak1/kaṇāda-the-great-physicist-and-sage-of-antiquity-5a2abd79b6f1]
- Klaus K. Klostermaier (2010). Survey of Hinduism, A: Third Edition. State University of New York Press. p. 334. ISBN 978-0-7914-8011-3.
- K N Jayatilleke (2013). Early Buddhist Theory of Knowledge. Routledge. p. 266. ISBN 978-1-134-54287-1.
- Klaus K. Klostermaier (2010). Survey of Hinduism, A: Third Edition. State University of New York Press. pp. 333–334. ISBN 978-0-7914-8011-3.
- James Thrower (1980). The Alternative Tradition: Religion and the Rejection of Religion in the Ancient World. Walter de Gruyter. pp. 76–90. ISBN 978-90-279-7997-1.
- Naturalism in Classical Indian Philosophy, Amita Chatterjee (2012), Stanford Encyclopedia of Philosophy
- The Vaisheshika sutras of Kanada, 2nd Edition, Translator: Nandalal Sinha (1923); Editor: BD Basu; Note: this is the translation of non-critical edition of the manuscript
- O'Flaherty, p. 3.
- Vitsaxis, Vassilis. Thought and Faith: Comparative Philosophical and Religious Concepts in Ancient Greece, India, and Christianity. Somerset Hall Pr 2009-10-01 (October 2009). P. 299. ISBN 1935244035.
- Surendranath Dasgupta (1992). A History of Indian Philosophy. Motilal Banarsidass. pp. 281–285. ISBN 978-81-208-0412-8.
- Roy W. Perrett (2013). Philosophy of Religion: Indian Philosophy. Routledge. pp. xiii–xiv. ISBN 978-1-135-70329-5.
- John A. Grimes, A Concise Dictionary of Indian Philosophy: Sanskrit Terms Defined in English, State University of New York Press, ISBN 978-0791430675, page 238
- M. Hiriyanna (1995). The Essentials of Indian Philosophy. Motilal Banarsidass. p. 85. ISBN 978-81-208-1330-4.
- Bimal Krishna Matilal 1977, pp. 53-54.
- Bimal Krishna Matilal 1977, p. 56.
- Bimal Krishna Matilal 1977, p. 57.
- Bimal Krishna Matilal 1977, p. 58.
- The Vaisesika Sutras of Kanada, page 3, Translated by Nandalal Sinha (note this translation is of the old disputed manuscript, not critical edition)
- The Vaisesika Sutras of Kanada, pagez 152-166, Translated by Nandalal Sinha (note this translation is of the old disputed manuscript, not critical edition)
- John Wells (2009), The Vaisheshika Darshana, Darshana Press, Chapter 5 verses (main and appendix)
- Bimal Krishna Matilal 1977, p. 59.
- The Vaisesika Sutras of Kanada, pagez 296-304, Translated by Nandalal Sinha (note this translation is of the old disputed manuscript, not critical edition)
- John Wells (2009), The Vaisheshika Darshana, Darshana Press, pages 32-34
- Cowell, E. B.; Gough, A. E. (1882). The Sarva-Darsana-Samgraha by Madhvacharya: Trubner's Oriental Series. Taylor & Francis (2001 Reprint). ISBN 978-0-415-24517-3.
- Jeaneane D. Fowler (2002). Perspectives of Reality: An Introduction to the Philosophy of Hinduism. Sussex Academic Press. ISBN 978-1-898723-93-6.
- Subhash Kak (2016), Matter and Mind: The Vaiśeṣika Sūtra of Kaṇāda ISBN 9781988207148
- H. Margenau (2012). Physics and Philosophy: Selected Essays. Springer Science. ISBN 978-94-009-9845-2.
- Bimal Krishna Matilal (1977). Nyāya-Vaiśeṣika. Otto Harrassowitz Verlag. ISBN 978-3-447-01807-4.
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