It is not so much an idiom as a proverb or folk proverb. For a long time, I always thought that this sentence first spread in the Qing Dynasty or the Republic of China, because it was plain. Unexpectedly, at the latest in the late Qin dynasty, this sentence has been circulated in society. This sentence was first seen in Historical Records: A Family Leaving Hou. Pei Gong Liu Bang100,000 rebels broke through the customs, defeated the defenders in Qin Guan area in Lantian, took the lead among the rebels in the world and successfully entered Xianyang. After Liu Bang entered Xianyang Palace in Qin Dynasty, he was attracted by the beauty and treasures in the palace, and got carried away, so he was ready to stay in Qin Gong and have a good time. His brother-in-law Fan Kuai advised him, but he wouldn't listen. At this time, Sean entered the palace to protest directly, severely reprimanded Liu Bang, explained his mistake in doing so, and said, "Poison is bitter and good for disease, but it is suggested that it is beneficial to action at the most unpleasant time. Please listen to Fan Kuai. " Pei Gong was reluctant to leave Qin Gong, and announced that the army was stationed in the bully on the outskirts of Xianyang, so as not to disturb the people. This is probably the earliest source of this famous saying. The word "poison" in the original sentence does not refer to poisonous medicine, but "poison" refers to "poison mouth", which means it tastes very bad.

Translation:

Bitter taste of good medicine is good for disease: (two theories) 1. Bitter pills may have wholesome effect. 2. Good medicine tastes bitter. Unpleasant advice is good medicine. The first layer means that bitter medicine is hard to swallow, but it is good for the disease. Advice is a little hurtful, but it is helpful to our words and deeds. Now it is often used to describe how to treat others' opinions and criticisms correctly. The second meaning is: good medicine is bitter, but it is good for treating diseases; Most of the language that teaches people to be kind is not very pleasant to listen to, but it is helpful for people to correct their own shortcomings. This sentence is to educate people to be brave in accepting criticism. Because it is not terrible for a person to make a mistake, as long as it can be corrected in time, it will be fine. The terrible thing is that he is afraid of medical treatment and unwilling to accept criticism from others, thus turning a small mistake into a big mistake and a big mistake into an incurable disease. Bitter medicine is hard to swallow, but it is good for self-healing. Although it hurts a little, it is helpful to our words and deeds. Now it is often used to describe how to treat others' opinions and criticisms correctly.

This is the composition:

Recently, we have studied ancient and modern sages (truth), and there is a saying: good medicine tastes bitter and is good for illness, but advice when most needed is hard to hear is good for action. This sentence makes me deeply touched. It means: medicine is bitter, but you must take it if you are sick. It can restore your health and play a great role in you. Listen to a suggestion from a friend or family member, although it sounds a little ugly.

So I want to say that if your close friends or others point out your shortcomings or shortcomings and tell you a few words of advice, you can't misunderstand them and think they are not true, but deliberately satirize them. You can't even yell at others when they are angry after listening. This will not only make others despair of you, but also do you no good, or you will only make mistakes again and again. If your shortcomings are those that will affect your life, then you will eventually go to a dead end and go astray. ...

Having said that, I thought of the reality of our life.

People will get sick all their lives. If they get sick, they should take medicine. However, as we all know, almost all the medicines in this world are bitter and unpalatable, and some even make you feel sick, so you have to hold your nose and eat them painfully. In the next few days, you will find yourself getting better quickly. Isn't it because of the medicine that your condition has improved so quickly? Isn't your hero the medicine that once made you frown? If you don't take medicine for a temporary appetite, your condition will be more serious. Yes, good medicine tastes bitter and is good for the disease!

At home, we are often scolded by our parents for not studying hard. For example, I am a living example: I remember once I finished my homework in a hurry and stuffed the book into my schoolbag without checking it carefully. As a result, I found myself making a very low-level calculation mistake when I sent my notebook the next day. Once, my mother accidentally found this low-level mistake when checking my homework. She was very angry and said to me, "What's wrong with you?" Can such a simple calculation be wrong? Why do you always do your homework so carelessly? You must be careful not to dwell on the shortcomings of carelessness, or your grades will drop, which is very dangerous! "I feel wronged to hear that she is so angry. After all, I don't want to do this! Then I had to work hard to correct it. Finally, I got rid of this bad habit and the quality of my homework improved a lot. Yes, the most unpleasant advice is helpful!

Yes, good medicine tastes bitter, but advice is hard to listen to. I hope that if someone gives you advice in the future and wants you to make up for your own shortcomings, please don't listen to the advice and try to correct it!