玩物丧志 indulge in pleasure and lose one's ambition
Explanation
玩物丧志是一个成语，意思是沉迷于玩乐而丧失了志气和进取心。它告诫人们要注重学习和事业，不能沉溺于享乐，以免虚度光阴，一事无成。
Wánwù sàngzhì is an idiom that means to lose one's ambition and drive by being absorbed in play and amusement. It warns people to focus on learning and career, not to indulge in enjoyment, so as not to waste time and achieve nothing.
Origin Story
卫懿公是个昏庸的国君，他不关心国家大事，只沉迷于养鹤。他甚至给鹤封官，赏赐俸禄，百姓对此怨声载道。后来，狄人入侵，卫懿公的军队因为士气低落，毫无斗志，溃不成军，卫懿公最终被狄人所杀。这个故事告诉我们，沉迷玩乐，不思进取，最终只会玩物丧志，害人害己。
Yi Gong, the ruler of Wei, was an incompetent monarch who did not care about important state affairs but preferred to raise cranes. He even gave the cranes official positions and rewarded them with salaries, which caused resentment among the people. Later, the Di people invaded, and Yi Gong's army, due to low morale and lack of fighting spirit, was defeated. Yi Gong was eventually killed by the Di people. This story tells us that indulging in pleasure and lacking ambition will ultimately lead to losing one's ambition and harming oneself.
Usage
玩物丧志常用于批评那些沉迷于玩乐、不思进取的人，也可以用来劝诫自己或他人要重视事业、学习，不能沉溺于享乐。
Wánwù sàngzhì is often used to criticize those who are indulged in pleasure and do not strive for progress. It can also be used to warn oneself or others to attach importance to career and learning, and not to indulge in enjoyment.
Examples
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他沉迷于网络游戏，最终玩物丧志，一事无成。
tā chénmí yú wǎngluò yóuxì, zuìzhōng wánwù sàngzhì, yīshì wú chéng
He indulged in online games, eventually losing his ambition and achieving nothing.
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不要玩物丧志，要认真学习，将来才能有所成就。
bùyào wánwù sàngzhì, yào rènzhēn xuéxí, jiānglái cáinéng yǒusuǒ chéngjiù
Don't waste your time on frivolous things; study hard so that you can achieve something in the future.