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Good medicine tastes bitter and is good for illness, but advice when most unpleasant is good for action. From Shihou [1] Pei Gong Liu Bang100,000 rebels broke through the customs, defeated the defenders of Qin Guan 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.
"Six Books of Confucius' Family Words": "A good medicine tastes bitter and is good for illness, but advice is hard to listen to is good for action.
Although medicine is bitter, it is beneficial to the treatment of diseases. Advice is often unpleasant, but it is good for action.