置之脑后 Put it behind one's mind
Explanation
指把事情放在一边，不再去想。
It means putting something aside and not thinking about it anymore.
Origin Story
从前，有个秀才非常用功，为了参加科举考试，他夜以继日地读书，甚至忘记了吃饭睡觉。有一天，他的朋友来看望他，劝他注意身体，不要过度劳累。秀才却说：“科举考试关系到我的前途命运，其他的事情我都可以置之脑后。”朋友无奈地摇摇头离开了。之后，秀才如愿考中了举人，但他因为长期熬夜，身体变得很差。多年后，他回忆起朋友的劝告，深感后悔。虽然取得了功名，但也付出了巨大的代价。这个故事告诉我们，任何事情都不能只顾眼前利益，忽略身体健康和人际关系。
Once upon a time, there was a scholar who was very diligent. In order to pass the imperial examinations, he studied day and night, even forgetting to eat and sleep. One day, a friend came to visit him and advised him to pay attention to his health and not to overwork. However, the scholar said, "The imperial examinations concern my future and destiny; I can put other things aside." The friend shook his head helplessly and left. Later, the scholar successfully passed the examinations and became a successful official, but due to constant lack of sleep, his health became very poor. Many years later, he recalled his friend's advice and deeply regretted it. Although he had achieved success, he also paid a great price for it. This story teaches us that we should not only consider short-term benefits but also health and interpersonal relationships in everything we do.
Usage
用于表达对某事不在意的态度，通常用于否定句。
Used to express an indifferent attitude towards something, usually used in negative sentences.
Examples
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他把老师的批评置之脑后，继续我行我素。
ta ba laoshi de piping zhi zhi naohou, jixu wo xing wo su.
He put his teacher's criticism behind him and continued to act as before.
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考试失败的打击，让他把之前的努力都置之脑后了。
kaoshi shibai de daji, rang ta ba zhiqian de nuli dou zhi zhi naohou le
The blow of failing the exam caused him to forget his previous efforts.