Yajnavalkya

Yajnavalkya or Yagyavalkya (, IAST:) is a Hindu Vedic sage prominently mentioned in the Brihadaranyaka Upanishad (c. 700 BCE) and ''Tattiriya Upanishad''. Yajnavalkya proposes and debates metaphysical questions about the nature of existence, consciousness and impermanence, and expounds the epistemic doctrine of neti neti ("not this, not this") to discover the universal Self and Ātman. Texts attributed to him include the ''Yajnavalkya Smriti'', ''Yoga Yajnavalkya'' and some texts of the Vedanta school. He is also mentioned in the ''Mahabharata'' as well as various Puranas, Brahmanas and Aranyakas. Provided by Wikipedia