2. Reasoning. Using the method of reasoning, this paper proves the viewpoint with the incisive opinions in classic works, famous sayings from ancient and modern Chinese and foreign celebrities and recognized scientific principles, theorems and formulas. For example, the tenth paragraph of Talking about Reading (Book 9 of People's Education Edition) lists the functions of six kinds of scientific knowledge: "Reading history makes people wise, reading poetry makes people wise, calculus makes people precise, philosophy makes people think deeply, ethics makes people think, and logical rhetoric makes people good at distinguishing", and it is concluded that "knowledge can shape people's character". The list is informative and the conclusion is convincing. Because the materials cited in the argument are all scientific conclusions confirmed by objective reality, or people's recognized truth, theoretical authority and profound thoughts, they are irrefutable and persuasive.
3. In addition, citing arguments is a kind of reasoning, that is, citing famous sayings or opinions as arguments, citing classics to analyze problems and explain reasons. Pay attention to the distinction and don't confuse it.