Refers to the insignificance and impermanence of human life, like a rat's arm or a louse's liver. It suggests that existence can be fleeting and humble.
尘世间的一切，不过是鼠臂虮肝，不必过于执着，应随遇而安。
Everything in this mortal world is but a rat's arm or a louse's liver; there's no need to cling to it too much, one should just take things as they come.
Era:
Early Modern
Frequency:
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