1. Nothing has its appearance? [xū yǒu qí biǎo]?

Interpretation: emptiness: emptiness; appearance: surface, appearance. It only looks good on the outside, but actually it doesn’t work. It means in name only. Source: Tang Dynasty Zheng Chujie's "Ming Huang Zalu": ??"Song has retreated; it throws its grass on the ground: 'What is empty is its ears!'"

2. The appearance is different from the inside? [ biǎo lǐ bù yī ]?

Explanation: The surface is different from the inside. Source: "Yi Zhou Shu·Posthumous Law Interpretation": "It is known as "悫" in Chinese and foreign languages."

3. In name but not in reality? [yǒu míng wú shí]

Interpretation: Only empty name , which is not actually the case. Source: "Zhuangzi Zeyang": "Having a name and reality is where things live; having no name and reality is the emptiness of things." "Guoyu·Jinyu 8": "I have the name of Qing but no reality. There is no way to follow it. "Two or three sons, I am worried, why do you congratulate me?"

4. Flashy? [huá ér bù shí]

Interpretation: Hua: blossom. The flowers bloom beautifully, but they bear no fruit. It means that the appearance is beautiful but the content is empty.

Source: "Yanzi Chunqiu · Waipian · Those who do not conform to the classics": "In the East China Sea, there is water that is red, and there are dates in it. It is flashy and unreal, why." "Zuo Zhuan·Wen Gong's fifth year" : "It is flashy and unrealistic, and it is where resentment gathers."

5. Gold and jade are outside, and rotten cotton is inside.

Interpretation: Gold and jade: a metaphor for beauty; rotten cotton: rotten cotton. It looks like gold and jade on the outside, but it's like tattered cotton wool on the inside. The metaphor looks gorgeous on the outside but a mess on the inside.

Source: Ming Dynasty Liu Ji's "Sincerity Bo Ji·Speaking of Mandarin Sellers": "Looking at those sitting in high halls, riding big horses, drunk and drinking fat and fresh food, whoever is not towering is almost terrifying. It’s so impressive that it’s like nothing else, but there’s nothing like gold and jade on the outside, and there’s nothing like it on the inside!”