事必躬亲 Personally attend to everything
Explanation
事必躬亲指不论什么事都要亲自去做，亲自过问。形容办事认真，毫不懈怠。
Shi Bi Gong Qin means to personally handle everything, no matter what. It describes someone who is diligent and dedicated to their work.
Origin Story
话说唐朝时期，有个名叫李白的诗人，他不仅才华横溢，而且为人谦逊，做事认真负责。有一次，他受朋友之托，要写一幅字送给他的老师。李白非常重视这件事，他不仅亲自挑选上等的宣纸和墨汁，还亲自研磨墨汁，练习字体，直到满意为止。他反复修改，力求完美，最终写出气势恢宏，字迹优美的作品。朋友将字送给他老师后，老师看后连声称赞，并感叹道：‘这李白真是个事必躬亲的人啊！’李白的老师不仅是对李白为人处世态度的肯定，更是对书法艺术一丝不苟的体现。
In the Tang Dynasty, there was a poet named Li Bai, who was not only exceptionally talented but also humble and responsible. Once, a friend asked him to write a calligraphy work for his teacher. Li Bai took this task very seriously. He personally selected high-quality paper and ink, ground the ink himself, and practiced his handwriting until he was satisfied. He repeatedly revised his work, striving for perfection, and finally created a magnificent and beautiful piece. When the friend gave the work to his teacher, the teacher praised it highly and exclaimed, “This Li Bai is truly a man who personally handles every matter!” Li Bai’s teacher not only praised Li Bai’s attitude towards life but also the meticulous execution of the calligraphy.
Usage
用于形容一个人认真负责，事事亲力亲为。
Used to describe someone who is meticulous and responsible, personally handling everything.
Examples
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他是一个事必躬亲的人，所以他的工作总是做得非常出色。
tā shì yīgè shì bì gōng qīn de rén, suǒyǐ tā de gōngzuò zǒngshì zuò de fēicháng chū sè.
He is a person who does everything himself, so his work is always done very well.
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为了确保项目的成功，他事必躬亲，亲自监督每一个细节。
wèile quèbǎo xiàngmù de chénggōng, tā shì bì gōng qīn, qìnzì jiāndū měi yīgè xìjié。
To ensure the success of the project, he personally supervises every detail.