The concept of aphorism, proverb, famous saying and epigram (1). Modern Chinese Dictionary has a good understanding of the four words. Excerpts are as follows-maxim: words with admonition and educational significance are generally concise, such as "all bets are off, modesty benefits", modesty makes people progress, and pride makes people lag behind. Famous words: famous words. As the saying goes. Proverbs: fixed sentences circulated among the masses reflect profound truth in simple and popular words. For example, "two heads are better than one", "three hundred and sixty lines, each with his own way" and "nothing is difficult in the world, only if you put your mind to it." Defense: concise and profound sentences. (2) The relationship between them is 1. If all four have certain meanings, then all four are accepted by the masses and relatively fixed. 2. The difference between the four is that they have their own emphasis and characteristics in expression. Proverbs mainly emphasize that they come from famous places and people's mouths, and are widely circulated fixed sentences; Epilogues focus on profound and vivid sentences, which make people pay special attention and alert. Emphasizing "warning" is to make people pay special attention; Famous sayings focus on speech awareness, which is famous, so famous sayings are often called "famous sayings". Often famous sayings are not only famous, but also people generally know who said this famous saying; Motto is an educational word, similar to aphorism, so it is generally called "aphorism" when aphorism and aphorism are connected. (3) Is it a proverb to read a book a hundred times? Strictly speaking, this sentence is a famous saying, not a proverb, because "a book is read a hundred times, and its meaning is self-evident" was first said by Dong Yu during the Three Kingdoms period (see "Wei Zhi of the Three Kingdoms"). Although this sentence is widely quoted, it is strange that people often ignore its source when quoting and explaining, so many people think it comes from the people. Therefore, many people often quote this sentence with quotations such as "there is a cloud in the old saying", "there is a saying" and "people often say". Even Zhu, a great scholar in the Song Dynasty, didn't mention the source of this sentence, only said that "the ancients said,' Read a book a hundred times, and you will know its meaning'". It seems that Dong Qian's name was not "written" and has been forgotten by later generations, so he took it as a proverb.