The term "politically correct" was first used in the field of politics,but later in the cultural or linguistic sense.

The author gives a brief introduction of the intellectual and moral carnage resulted from liberal education s deviation from the civilizing nature and educational goals,identifies the essence of " multiculturalism" and "political correctness" and then analyzes the failure of educational reforms in the U.

Value judgement going before analysis and attitude going before research indicate the similarity between representing for the disadvantaged group and American political correctness,which represses the depth of research.

The stress on harmony between nature and man has resulted in the loss of philosophical premise of science and technology;the political supremacy has eliminated scientific demand and led to the lack of scientific accumulation and devotion.