In the eastern travel of Confucius, I came to a place to feel hungry in the abdomen, and I said to the chief: "In front of a restaurant, you will go to the rice." Yan Huo went to the restaurant, explained the intention. The owner of the restaurant said: "I have to eat, but I have a request." Yan Hui is busy: "What is the requirements?" The owner replied: "I wrote a word, if you know, I will ask you to eat. If you don't know the chaotic stick. "Yan Hui smiled:" The owner, back me, but I have been with the master for many years. Slow talking, is there any article? "The master also smiled slightly: "Don't boast, I will give it to say." Said that the pen wrote a "true" word. Yan Hui Haha laughed: "The owner, you are too bullying, I can't, I thought what it was difficult to recognize, this word, I'm looking for five years old." The master smiled: "What is this word?" Back: It is a serious "true" word. The owner is clear: "Hey, ignorance is a cold, the old man is born, come, chaotic sticks." Yan Hui came back to see the teacher, said. Kong Lao Master smiled slightly: "It seems that he is going to be in front of the teacher." When it comes to the store, explain the intention. The owner wrote the word "true". Kong Lao Master replied: "This word is straight eight '." The store is laughing: "It's the husband coming, please." Just after eating, you can't get a penny. Yan Hui, I don't understand, ask: "Teacher, don't you teach us the word 'true'? When will you change to eight? '." Kong Lao Master smiled slightly: "Sometimes thing is to recognize. 'what."