Mao Tsetung Thought is Marxism-Leninism of the era in which imperialism is heading for total collapse and socialism is advancing to world-wide victory. The entire history of out Party has borne out this truth: Departing from the leadership of Chairman Mao Tsetung Thought our Party will suffer setbacks and defeats; following Chairman Mao closely and acting on Mao Tsetung Thought, our Party will advance and triumph. We must forever remember this lesson. Whoever opposes Chairman Mao, whoever opposes Mao Tsetung Thought, at any time or under any circumstances, will be condemned and punished by the whole Party and the whole country.

Discussing the consolidation and building of the Party, Chairman Mao has said: A human being has arteries and veins through which the heart makes the blood circulate, and he breathes with his lungs, exhaling carbon dioxide and in haling oxygen, that is, getting rid of the stale and take in the fresh. A proletarian party must also get rid of the stale and take in the fresh, for only thus can it be full of vitality. Without eliminating waste matter and absorbing fresh blood the Party has no vigor.

With this vivid analogy, Chairman Mao has expounded the dialectics of inner-Party contradiction. "The law of contradiction in things, that is, the law of the unity of opposites, is the basic law of materialist dialectics." Opposition and struggle between the two lines within the Party are the reflection inside the Party of contradictions between classes and between the new and old in society. If there were no contradictions in the Party and no struggles to resolve them, and if the Party did not get rid of the stale and take in the fresh, the Party's life would come to an end. Chairman Mao's theory on inner-Party contradiction is and will be the fundamental guiding thinking for the consolidation and building of the Party.