Jizi thus said: “I once learned that Gun misused the five elements, i.e., wood, fire, earth, metal and water, in his efforts to control the floods. The Ruler of Heaven was furious and deprived him of all the Nine Great Rules. As a result, the long-standing laws of governance of the state were jeopardized. Gun was sent in exile until his death. His son Yu took over his father’s duties and became very successful in harnessing the floods. Heaven bestowed the Nine Great Rules on him. Order was restored due to the operation of these long-standing laws of governance. (The Book of History)