The dregs of society are also indispensable; it would be strange if society did not have these dregs! I think they will still exist in ten thousand years. Otherwise, there would be nothing correct. Truth is spoken of in relation to falsehood, materialism in relation to idealism, and dialectics in relation to metaphysics. Ten thousand years from now, metaphysics and idealism will still exist; otherwise, there would be no contradictions in society. Stalin made this mistake in his later years. He only emphasized the unity of the people of all classes in Soviet society and denied their disunity. He thought there were no more contradictions in socialist society. This refers to the period from 1934 to 1937, 1938, when in fact profound contradictions were hidden. He did not admit that classes and class struggle existed in socialist society, and as a result, things went to their opposite; affirmation turned into negation. Of course, negation will in turn become the negation of the negation, which is to say, it is impossible for the Soviet people to be ruled by revisionism for long.