"The Great Proletarian Cultural Revolution failed for different reasons. First, the discontents of the younger generation whom Mao mobilized proved to be far more furious than he had supposed, and the young were soon joined by other alienated groups, of which the most important were the millions of casual (as opposed to established) workers in State industry. Second, the threatened Party leaders fought back by force and fraud, most obviously through the creation of sham Red Guard organizations. The resulting chaos ensured that the Party’s authority was eventually restored by the PLA, with the support of Mao himself. Yet neither of these campaigns proved to have been entirely futile. It is seldom recognized that the ideological condemnations of senior Party leaders published by the Red Guards were almost always accompanied and illustrated by condemnation of the policies of those they opposed. These indictments in policy terms, put together, show that one of the objects of the Cultural Revolution was to re-establish the Great Leap strategy, shorn of the excesses which had prejudiced it. And in 1970, Mao's commune and brigade enterprises, the heart and soul of the strategy, were re-established. This time they succeeded. By the time Deng Xiaoping came to power in 1978 they had become indispensable and were soon to become the fastest growing sector of the economy, expanding at rates of up to 33 per cent per annum."
January 1, 1970
https://en.wikiquote.org/wiki/Cultural_Revolution