聪明一世 Smart all one's life
Explanation
形容一个人非常聪明，但有时也会因为一时疏忽而犯错。
Describes someone who is very smart, but sometimes makes mistakes due to carelessness.
Origin Story
话说当年，有一位名震江湖的智者，名叫诸葛青云。诸葛青云一生精明强干，运筹帷幄，决胜千里，在商场上呼风唤雨，赚得盆满钵满。他精通各种商业策略，预判市场走向如同神机妙算，每一次投资都稳赚不赔，大家都称赞他聪明一世。然而，在人生的暮年，诸葛青云却因为轻信他人，将毕生积蓄全部投入一个看似稳妥的项目，结果却遭遇了巨大的经济损失。这件事让他意识到，即使聪明一世，也不能排除一时糊涂的风险。人生的道路漫长而复杂，即使是经验丰富的人，也难免会遇到意想不到的陷阱。
It is said that there was once a wise man who was famous throughout the world, named Zhuge Qingyun. Zhuge Qingyun was smart and capable all his life, planning strategies and winning battles, he reigned over the business world, making a fortune. He was proficient in all kinds of business strategies, his predictions of market trends were like divine calculations, and every investment was a sure win. Everyone praised him for his intelligence. However, in his later years, Zhuge Qingyun was deceived by someone he trusted, and invested all his life savings in a seemingly safe project, which resulted in enormous financial losses. This made him realize that even though one is intelligent throughout one’s life, one cannot rule out temporary carelessness. The path of life is long and complex, even those with extensive experience may stumble into unexpected pitfalls.
Usage
常用来形容一个人虽然聪明，但也会有犯错的时候。
Often used to describe someone who is smart but can also make mistakes.
Examples
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他聪明一世，却在关键时刻犯了糊涂。
tā cōngmíng yīshì què zài guānjiàn shíkè fàn le hútu.
He was smart all his life, but made a mistake at the critical moment.
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老张聪明一世，却在投资上栽了跟头。
lǎo zhāng cōngmíng yīshì què zài tóuzī shàng zāi le gēntóu
Old Zhang was smart all his life, but stumbled in his investment.