蚍ㄆㄧˊpí蜉ㄈㄨˊfú撼ㄏㄢˋhàn大ㄉㄚˋdà樹ㄕㄨˋshù

蚍蜉，大螞蟻。蚍蜉撼大樹指以大螞蟻的力量想去搖動大樹。比喻不自量力。唐·韓愈〈調張籍〉詩：「蚍蜉撼大樹，可笑不自量。」也作「蚍蜉撼樹」。

英lit. an ant trying to shake a big tree (idiom), fig. to overrate one's own strength, also written 蚍蜉撼樹[pi2 fu2 han4 shu4]