聰ㄘㄨㄥ明ㄇㄧㄥˊ一ㄧˊ世ㄕˋcōngmíng‑yíshì，糊ㄏㄨˊ塗ㄊㄨˊ一ㄧˋ時ㄕˊhútú‑yìshí

简聪明一世，糊涂一时
cōngming‑yīshì, hútu‑yīshíㄘㄨㄥ　˙ㄇㄧㄥ　ㄧ　ㄕˋ，ㄏㄨˊ ˙ㄊㄨ　ㄧ　ㄕˊ

  1. 〈諺〉一向聰明的人也偶爾有糊塗、疏忽的時候。例 「他真是聰明一世，糊塗一時，竟然簽了那份不合理的合約」。

英even the wisest can have a momentary lapse in judgement (idiom)​, every man has a fool in his sleeve