《淮南子·人间训》
谚语说： 老鹰嘴里掉下了死腐鼠，富户虞家要遭灭亡了。 
何谓也？曰：虞氏，梁之大富人也。
The proverb says: The dead rotten mouse fell out of the eagle's mouth, and the wealthy Yu family is going to be wiped out.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 何谓也？曰：虞氏，梁之大富人也。 [/INST] The proverb says: The dead rotten mouse fell out of the eagle's mouth, and the wealthy Yu family is going to be wiped out.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 何谓也？曰：虞氏，梁之大富人也。
user
The proverb says: The dead rotten mouse fell out of the eagle's mouth, and the wealthy Yu family is going to be wiped out.
assistant