"Mao was strongly inclined to "total solutions." He believed in philosophy as an instrument of change and that society was always in flux between periods of stability and periods of luan, chaos. Change arose from luan. Stability was static. In a state of upheaval, progress was made and new, capable people and ideas emerged. The Mao scholar Li Zehou quotes Mao as saying after he read the history of China's Warring States, "It is a delight to read. But when it moves to the peaceful years I hate it. Not because I love chaos but because a time of peace is not good for the development of the people. It is unbearable." Whether all this underlay Mao's fatalistic decision will never be known. He kept no diary, and none of his secretaries was privy to all his thoughts. But there can be no question that Mao well understood his historic achievement in routing Chiang Kai-shek and uniting China under the Communist banner, and he also believed that the crusade ultimately called the Cultural Revolution was an even greater enterprise. It was, in his view, a revolution not only to save his revolution but to perfect it, endangered as he believed it to be by contamination, impurities, and even treason from within. It must be saved from the men who had helped to create it. In this Kang Sheng's poisoned words played a part. If Mao achieved success in his new campaign it would, he reckoned, be the ultimate deed of his career, overshadowing even the establishment of the People's Republic in 1949. This, he was confident, would place his name not among the great men of China but at the head of the list, as the emperor of emperors."