不二一元論
Adi Shankara, a Hindu philosopher of the Advaita Vedanta school, composed a large body of literary works which are central to the Advaita Vedanta interpretation of the Prasthanatrayi—the canonical texts consisting of the Upanishads, the Bhagavad Gita and the Brahma Sutras. His works deal with logically establishing the doctrine of Advaita Vedanta.