The selected factual materials should be accurate and reliable, which is the minimum requirement. The book Principles, Textual Research and Text says: "Even if the details have no direct impact on all arguments, people will doubt the reliability of all materials and even hurt the persuasiveness of arguments."

There are many facts in life, but we must choose people and things that are representative and can reveal the essence of things, especially some celebrities and events. Try not to choose what happened in your class as an argument. Such an example lacks typical significance. Lenin said: "It is effortless to list general examples, but it is meaningless or completely counterproductive. Because in a specific historical environment, everything has its own individual circumstances. " (Statistics and Sociology)

"Throughout the ages, people who lack' self-knowledge' have harmed others, themselves and their careers. Both Zhao Kuo and Masu taught themselves art books, but they didn't see their lack of practical application ability. The result is an armchair strategist and a long defeat. One is arrogant, and the teacher is frustrated in the street pavilion. "

This passage selects two typical examples, Zhao Kuo and Ma Su, and demonstrates from the opposite side that people are self-aware and very convincing.

In order to make the article convincing and attractive, the arguments should be fresh, and try to use fresh materials that others have never used or rarely used. If you must use old materials, you should also try to dig up new things. Li Yu said in "Casual Love": "People only seek the old and things only seek the new; Newcomers are also famous in the world. And the article is particularly double. " With the development of society, new people and new things emerge one after another. The selection of materials should closely follow the pulse of the times, so as to be thought-provoking and give people a refreshing feeling.

2. Choose examples that are closely related to the argument.

When selecting materials, we should understand the nature of the materials, stick to the arguments and not separate them. For example, when demonstrating that "diligence can make up for mistakes", sometimes students will give such an example: "Wang Xizhi often wrote and cut clothes, and finally became a famous calligrapher. Think carefully, Wang Xizhi is indeed "diligent" and has made achievements, but this has nothing to do with making up, because Wang Xizhi is not clumsy, so we might as well change an example:

"Mei Lanfang stuttered when she was a child. In order to make up for this defect, he insisted on singing with sand every morning, and finally got rid of the stuttering problem and became a famous artist at home and abroad. "

Mei Lanfang practices with sand in her mouth every day, which is "diligence" and stuttering is "clumsiness". After hard work, she finally got rid of her troubles and achieved success in her career, which is a supplement to "clumsiness" and closely follows the argument.

3. Choose examples from multiple angles.

There are not many choices of examples, but they are fine. If we can choose examples from different levels and angles, it will play a role in making the argument more comprehensive and convincing. Commonly used examples are selected from different fields (politics, economy, military, ideology, culture, etc.). ), different nature (positive and negative), different countries (China, foreign countries), different times (ancient and modern).

Ancient and modern, Chinese and foreign, how many heroes and romantic figures lost their minds and fell in love, casting eternal regret! Ying Zheng, King of Qin, founded the Daqin Empire. How magnificent! Sadly, however, he was blinded by profit, thinking that his foundation was solid and he hoped that he would be grateful for eternity. He claimed to be the "first emperor" and imposed cruel political oppression and economic exploitation on the people. He frantically "burned books", "pitied Confucianism" and "acted foolishly", which eventually spread to the next year, and eventually led to "one person made an insurrection and seven temples died, and his hands were powerless". Newton, an outstanding scientist who was hailed as a "great man" in physics and discovered the law of universal gravitation, was influenced by "feeling" and blindly believed in theology in his later years, which is regrettable. The famous contemporary writer Zhou Fufu is very famous. Although he was born in party member, he was influenced by "feelings" and even lost his mind, regardless of national dignity. Kneeling at the feet of Japanese war criminals who committed heinous crimes caused great shame to the country and the people, and he himself became infamous.

This passage selects typical cases from the angles of ancient and modern China and foreign countries, politicians, scientists and writers, explains the harm of "following your feelings", and thus demonstrates the view of "following your reason", which is very convincing.