What is the word fool?

The basic explanation of this stupid word is as follows:

Stupid; Stupid person. ~ out of reach. Great wisdom is like ~. Fool people. As a courtesy ~ brother. ~ goodbye. ~ I thought it was impossible. Last name.

The detailed explanation is as follows:

1. (I know. From the heart, from (Yu). From the heart, it has something to do with temperament. I am a monkey and a stupid animal. Original meaning: stupid, foolish)

2. The same original meaning: silly, silly. -"Shuo Wen", three pardons, stupid. -"Zhou Li's Death", I'm not stupid. -"Poetry is elegant and restrained"

3. Again: the philosopher's fool. Right and wrong are stupid. -"The Body of Xunzi", knowing its misfortune, knows its fools. -"Jiazi Daoism" confuses fools. -Liu Mingxi's "Orange Man's Words" makes you stupid. -"Yuefu Poetry Shang Mo Singing", a fool is a fool. -Tang Han Yu's "On Teachers", fools are also clear. -Huang Qingzong Xi "Yuan Jun"

Another example: a fool is like a glue column (stick the string-tuning column together and play it again, only one constant sound can be played. Metaphor is stupid, like a plastic column, rigid and inflexible); Stupid (stupid and straightforward); Stupid (stupid); Stupid (stupid; Confused)

4. Self-proclaimed modesty

Fools are thinking in the camp. -Zhuge Liang "model" is a fool's plan. -"History as a Mirror", I have a passage, I hope the Prime Minister will examine it. -Romance of the Three Kingdoms

Another example is: silly brother (compared with the self-modesty of his own small person); Stupid old man (old man's modest words); A foolish minister (the minister claims to be humble to the monarch); Stupidity (a humble term for one's point of view); Ignorance (modesty refers to opinions)