"According to the Taoists and Buddhists, as far as the individual self is concerned, it may be divided into a physical body and a spiritual intelligence, the latter being primary. Extending this idea upward, they regard this spiritual intelligence as the primary factor in Heaven and Earth, from which they go on to seek for whatever lacks shape and form, regarding it as genuine existence, whereas whatever possesses shape and form they look upon as illusory. As for the Sung Confucianists, they regard the physical body and spiritual intelligence as equally personal and private whereas Principle, for them, is derived from Heaven."