The Nyaya system is also known as Nyaya Vidya or Tarka Shastra—the Science of Logic and Reasoning. Because Nyaya analyses the nature and source of knowledge, its validity and invalidity, it is also known as Anvikshiki, the Science of Critical Study. Nyaya asserts that obtaining valid knowledge of the external world and its relationship with the mind and self is the only way to attain liberation. If one masters the logical techniques of reasoning and dutifully applies these to daily life, he will rid himself of all suffering. The ultimate aim of Nyaya philosophy like other systems of Indian philosophy is liberation—the complete cessation of pain and suffering. Although concerned with the study of logic and epistemology, Nyaya is a philosophy of life.

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