That more than one or a number of uncertainties. Mao Zedong's "On the Correct Handling of Contradictions Among the People" one: "This conflict, including ... ... the staff of state organs in some bureaucracy with the contradictions between the masses." Mao Zedong "in publicity work of the Chinese Communist Party National Conference Speech ":" some wrong things is not surprising that there is no need to fear, which allows people to learn how to better fight it. "