What is the function of "citing argument" in argumentative writing?

Citation argument is related to specific cited materials, including citing famous sayings, aphorisms, authoritative data, anecdotes of famous people, jokes and anecdotes, etc. Its function should be analyzed in detail. For example, citing famous sayings, aphorisms and authoritative data can enhance the persuasiveness and authority of the argument; Citing anecdotes of celebrities and anecdotes can enhance the interest of argument and attract readers to read.