text: The vast majority of intellectuals have now come over politically to the side of the working class, and a rapid change is taking place in their family background.The conditions under which the urban poor and professional people existed as independent social strata have virtually been eliminated. Every year large numbers of peasants and students become workers, large numbers of workers, peasants and their sons and daughters join the ranks of intellectuals and office workers, large numbers of peasants, students, workers and office workers join the army and become revolutionary soldiers, while large numbers of revolutionary soldiers return to civilian life as peasants, students, workers or office workers. What is the point, then, of classifying these social strata into two different categories? Even if we were to try to devise a classification, how could we make it clear and unambiguous?”The party's emphasis on class line corresponded to Mao's criticism of the Khrushchev regime's “restoration of capitalism” in a famous news article published in 1964. One crucial aspect of the Khrushchev regime's “restoration of capitalism” was that it forgot the class struggle. In contrast, during various Socialist Education Campaigns, class line and class struggle in China were radicalized. 