ˋㄏㄨㄛˋㄋㄢˊㄊㄧㄢˊyùhuò‑nántián

欲壑难填
yùhè‑nántiánㄩˋ ㄏㄜˋ ㄋㄢˊ ㄊㄧㄢˊ
  1. 慾望猶如深谷一般難以填滿形容過大難以滿足 慾壑難填不如清心寡欲」、慾壑難填不止自取滅亡」。

bottomless pit of desire (idiom)​; insatiable greed, carnal cravings are never satisfied and are a main obstruction on the path to enlightenment
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