What is knowledge? Ever since class society came into being the world has had only two kinds of knowledge, knowledge of the struggle of production an… - Mao Zedong

In Shanghai, one Central Committee split into two Central Committees; in the Long March, we split with Zhang Guotao; the Gao-Rao Incident was a partial split. Partial splits are normal. Since last year, splits occurred within the leadership group in half of the provinces in the nation. Take the human body for instance. Everyday hair and skin are coming off. It is the death of a part of the cells. From infancy on, a part of the cells will die. It benefits growth. Without such destruction, man cannot exist. It would have been impossible if men did not die since the time of Confucius. Death has benefits; fertilizers created. You say you don’t want to become fertilizer, but actually you will. You must be mentally prepared. Partial splits occur every day. There will always be splits and destruction. The absence of splits is detrimental to development. Destruction in entirety is also a historical inevitability. As a whole, the Party and the stale, serving as the tools of the class struggle, will also perish. But before the completion of its historical mission, we must consolidate it. We do not hope for splits, but we must be prepared. Without preparation, there will be splits. With preparation, we will avoid big splits. Large and medium splits are temporary. The Hungary Incident was a large split; the Gao-Rao and Molotov Incidents are medium ones. Changes are occurring in each and every party branch. Some are dismissed while others join; some work successfully while others make mistakes. It is impossible for changes never to occur. Lenin constantly said: “A nation always has two possibilities: success or destruction.” Our people’s Republic of China also has two possibilities: continue to succeed, or become destroyed. Lenin did not conceal the possibility of destruction. China also has two possibilities, and we must recognize them. We are not in possession of the atom bomb. Should there be a war, running away is the best of the 36 stratagems. If Beijing, Shanghai and Wuhan are occupied, we will resort to guerrilla warfare. We will regress one or two decades and return to the Yanan era. Meanwhile, we must actively make preparations, vigorously promoting iron and steel, machinery and railways, striving for several ten million tons of steel output in three or four years, establishing an industrial foundation, and becoming more consolidated than today.

马克思列宁主义认为：认识过程中两个阶段的特性，在低级阶段，认识表现为感性的，在高级阶段，认识表现为论理的，但任何阶段，都是统一的认识过程中的阶段。感性和理性二者的性质不同，但又不是互相分离的，它们在实践的基础上统一起来了。我们的实践证明：感觉到了的东西，我们不能立刻理解它，只有理解了的东西才更深刻地感觉它。感觉只解决现象问题，理论才解决本质问题。这些问题的解决，一点也不能离开实践。无论何人要认识什么事物，除了同那个事物接触，即生活于（实践于）那个事物的环境中，是没有法子解决的。不能在封建社会就预先认识资本主义社会的规律，因为资本主义还未出现，还无这种实践。马克思主义只能是资本主义社会的产物。马克思不能在自由资本主义时代就预先具体地认识帝国主义时代的某些特异的规律，因为帝国主义这个资本主义最后阶段还未到来，还无这种实践，只有列宁和斯大林才能担当此项任务。马克思、恩格斯、列宁、斯大林之所以能够作出他们的理论，除了他们的天才条件之外，主要地是他们亲自参加了当时的阶级斗争和科学实验的实践，没有这后一个条件，任何天才也是不能成功的。

什么是知识？自从有阶级的社会存在以来，世界上的知识只有两门，一门叫做生产斗争知识，一门叫做阶级斗争知识。自然科学、社会科学，就是这两门知识的结晶，哲学则是关于自然知识和社会知识的概括和总结。