《南史·列传·卷七十二》
灵鞠说： 脚病真是大事，您是一代重臣，不可再担任您不能胜任的职务了。 
灵鞠曰： 脚疾亦是大事，公爲一代鼎臣，不可复爲覆餗。 
Ling Ju said: "A foot ailment is truly a serious matter. You are an important minister in this generation, you can no longer take on duties that you cannot perform."
<s>[INST] Kindly elucidate the central themes in this passage in English: 灵鞠曰： 脚疾亦是大事，公爲一代鼎臣，不可复爲覆餗。  [/INST] Ling Ju said: "A foot ailment is truly a serious matter. You are an important minister in this generation, you can no longer take on duties that you cannot perform."</s>
Kindly elucidate the central themes in this passage in English: 灵鞠曰： 脚疾亦是大事，公爲一代鼎臣，不可复爲覆餗。
user
Ling Ju said: "A foot ailment is truly a serious matter. You are an important minister in this generation, you can no longer take on duties that you cannot perform."
assistant