Concept

Nyaya

Overview

Nyāya (Sanskrit: न्यायः, IAST: nyāyaḥ), literally meaning "justice", "rules", "method" or "judgment", is one of the six orthodox (Āstika) schools of Hindu philosophy. Nyāya's most significant contributions to Indian philosophy were the systematic development of the theory of logic, methodology, and its treatises on epistemology.

Nyāya epistemology accepts four out of six pramanas as reliable means of gaining knowledge – pratyakṣa (perception), anumāṇa (inference), upamāna (comparison and analogy) and śabda (word, testimony of past or present reliable experts). In its metaphysics, Nyāya school is closer to the Vaisheshika school of Hinduism than others. It holds that human suffering results from mistakes/defects produced by activity under wrong knowledge (notions and ignorance). Moksha (liberation), it states, is gained through right knowledge. This premise led Nyāya to concern itself with epistemology, that is the reliable means to gain correct knowledge and to remove wrong notions. False knowledge is not merely ignorance to Naiyyayikas, it includes delusion. Correct knowledge is discovering and overcoming one's delusions, and understanding true nature of soul, self and reality.

Naiyyayika scholars approached philosophy as a form of direct realism, stating that anything that really exists is in principle humanly knowable. To them, correct knowledge and understanding is different from simple, reflexive cognition; it requires Anuvyavasaya (अनुव्यवसाय, cross-examination of cognition, reflective cognition of what one thinks one knows). An influential collection of texts on logic and reason is the Nyāya Sūtras, attributed to Aksapada Gautama, variously estimated to have been composed between the 6th century BCE and the 2nd century CE.

Nyāya school shares some of its methodology and human suffering foundations with Buddhism; however, a key difference between the two is that Buddhism believes that there is neither a soul nor self; Nyāya school like some other schools of Hinduism such as Dvaita and Viśiṣṭādvaita believes that there is a soul and self, with liberation (mokṣa) as a state of removal of ignorance, wrong knowledge, the gain of correct knowledge, and unimpeded continuation of self.

Overview adapted from Wikipedia (CC BY-SA 4.0; see the article history for authors).

In the original texts

Passages from public-domain books where Nyaya is discussed.

2. _The Philosophy of Gotama and Canade_. The philosophy of Gotama and that of Canade belong to one another.[18] The philosophy of Gotama is called Nyaya (reasoning), and that of Canade, Vaiseshica (particular). The first is a specially perfect dialectic, and the second, on the other hand, occupies itself with physics, that is, with particular or sensuous objects. Colebrooke says:—“No department of science or of…
Georg Wilhelm Friedrich Hegel, Hegel's Lectures on the History of Philosophy
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But all philosophy is either cognition on the basis of pure reason, or the cognition of reason on the basis of empirical principles. The former is termed pure, the latter empirical philosophy. The philosophy of pure reason is either propædeutic, that is, an inquiry into the powers of reason in regard to pure à priori cognition, and is termed critical philosophy; or it is, secondly, the system of pure reason—a…
Immanuel Kant, The Critique of Pure Reason
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In the common logic, the doctrine of syllogism is supposed to conclude the first part, or what is called the 'elementary' theory. It is followed by the second part, the doctrine of Method, which proposes to show how a body of scientific knowledge is created by applying to existing objects the forms of thought discussed in the elementary part. Whence these objects originate, and what the thought of objectivity…
Georg Wilhelm Friedrich Hegel, The Logic of Hegel
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It has a real form, because everything material must have a form. Behind the _indriyas_ is what is called the _manas_, the _chitta_ in _vritti_, what might be called the vibratory state of the mind, the unsettled state. If you throw a stone into a calm lake, first there will be vibration, and then resistance. For a moment the water will vibrate and then it will react on the stone. So, when any impression comes on…
Swami Vivekananda, Jnâna Yoga, Part II
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God is in truth the only being who is absolutely wise, that is, who possesses a perfect knowledge of all things; but we may say that men are more or less wise as their knowledge of the most important truths is greater or less. And I am confident that there is nothing, in what I have now said, in which all the learned do not concur.
René Descartes, Selections from the Principles of Philosophy
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Bhartṛhari

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