Fourth, we must carefully extract general, thought to write depth drafting written material is not only a data collection, data accumulation process, and is a research work experiences, the theory of sublimation process of the ideological materials, text, embodied in the material, examples, into the situation and explain the truth To find out from behind the fact that the nature of the problem, up to the level of theory, the regularity of the conclusions drawn. Comrade Mao Zedong had written material is written that: "talk about the situation, talk about point of view, is open material storage. the human mind is processing, there is no material not, with the material to be processed to produce point of view, with the commander in chief material point of view. "Links to free download http://eng.hi138.com