"Vedanta stands out as the most significant and native philosophy of India. It answers the strict demands of metaphysics, and the deep requirements of a sound religion. The system of Vedanta derives its doctrines from the Prasthana Trayi which comprises the three great text books, viz, the Upanishads, the Bhagavad Gita and the Brahma Sutras. Vedanta is the clearest and most comprehensive summary ever made of the perennial philosophy; hence its enduring value is meant not only for Indians, but for all mankind."