The idea that the riches should pay larger amount of taxes has been debated for a long period.While some arguing for it in that it ensures the social equity as the upper classes possessing more social resources and gain more wealth than the ordinary people,the opponents claim that paying at the same rate is exactly what the social morality calls for.But the problem is,how can we identify the committers from the objectors?Some may criticize the existing taxation flawed in execution though designed well,others may comment on it for unreasonable rating grades since misunderstanding equity.The discrimination might be rather difficult.The topic implies that commitment and criticism are two exclusive poles at both ends of the contrast,however,empirically saying,we cannot tear criticism from one's position since nothing is perfect enough to avoid any comment. 　　Which position will the public choose depends on whether their demands are fulfilled.They will stand for one thing if it benefits their physical needs or is coincident with their ideological thought.While we supporting the idea that helping others is good according to conscience,we will definite a robber as perpetrator since robbery is harmful to the community.When we set a opinion towards something,there always exist some expectations,that the case is supposed to be as conceived.Once our expectation cannot be fully accomplished,disappointment emerges,then follows critics.Parents presumably criticize on their children if the kids do some wrong,employees complain about the salaries when allocated extra tasks.　　　　Committees may hold a bright expectation on a certain idea or policy that they urgently hope the condition corresponds with their imagination.Unfortunately,nothing is perfect.Frustrating flaws and errors impulse the adverse emotions such as anxiety,agony,ambivalence,oscillation,etc. Criticism comes next. Oceans of critics from the Americans,especially fans of track and field,hit on the delayed rebroadcasting of the past Olympic Games held in London since they were expecting to enjoy the game simultaneously with the whole world;negative words provoked by the price-fluctuation of crude oil keep alive all year around as drivers and investors live partially on the oil;residents in China complain about the real estate policy because everyone asks for a better living condition while housing issue is always a significant problem in the Mainland.