This paper explores the essence of the World and the essence of Life/Consciousness. Then derives from they the highest principles of value judgment and a series of ethics, providing a theoretical basis for guiding our future actions. The essence of the World consists of three aspects: 1. Existence, 2. Not nothingness, 3.Difference/Change. The essence of Life/Consciousness includes four aspects: 1.Has the distinction of "self" and "non-self".2. Has the change of the "new self" and the "old self".3. Pursues to maintain "self".4. Pursue turning "non-self" into "self". Life and consciousness are completely identical. The pursuit of "Difference/Change" is the principle of the World. Beauty and art originate from th...