The door belongs to the bad guy, and the lock belongs to the gentleman.
Tongue bites only for rubbing, and teeth fall because of the orbit.
The hard crossbow string breaks first, and the steel blade hurts itself.
That is to say: the house is made into a door and closed with a door panel, just to prevent the villain from entering the house casually; As for a lock on the door, just to tell this gentleman that there is no one in the house, don't go in.
The tongue is bitten by teeth only because the tongue is responsible for stirring the food in the mouth; The tooth fell out because it wanted to look good, and it was artificially corrected and broken.
The hard crossbow machine always breaks the crossbow string first, and the blade of the steel knife hurts itself.
Why do you say that?
Xianwen discussed what people do when they build a house and open a door. Mainly to facilitate their own access, but why install door panels? The purpose is to prevent the children at home from going out of the house casually and encountering accidents. This is the earliest design concept of the door panel, and of course it is also to prevent malicious people outside the door from directly seeing the situation in the room. Children are villains, and people with bad intentions are also called villains. So Xianwen said that the door is for villains. As for locking the door, it just means that the host is not at home and outsiders should not disturb him. When a gentleman sees the door locked, he knows that his master is not at home at this time and will leave. When the tour guide saw it, it was done. As for those bad guys and thieves, how can this lock stop them? About a hammer. But this lock tells them that the owner is not at home and can boldly steal it. So the lock on the door is to prevent a gentleman. Where can I prevent thieves? Therefore, Xianwen said that the lock is a gentleman's defense.
It is very rare that the tongue is bitten by teeth. Once the tongue is bitten by a tooth, there may be two situations: one is that the tongue can't concentrate on eating when eating, and the tongue is bitten by a tooth because it doesn't cooperate well with the up-and-down chewing movement of the teeth. So, because of this action, it is to stir things in your mouth. The original main function of the tongue is to stir the food eaten in the mouth, so that the teeth are crushed evenly. It's easy to digest in the stomach. It is good for health. So our fine tradition is "eat without talking". In case your tongue is bitten.
In the second case, if you are not distracted while eating, but your tongue is often bitten by your teeth, you should pay attention. It may be that there is something wrong with the nerve in the head, such as a slight stroke and blood stasis in the brain, which leads to the lack of flexibility of the tongue. Need to go to the hospital for CT examination in time. Early treatment. Therefore, being bitten by the tongue is an abnormal performance and needs attention.
There are also two kinds of tooth loss. One is abnormal tooth loss, such as biting a hard bone and the tooth jumping off. This situation is caused by not paying attention to cooking food, and something hard jumped off when eating. Therefore, the eyes of the "orbital" eye are not easy to use, and the eyes are not framed with hard objects that cause tooth loss. Of course, if you don't pay attention to oral hygiene, it will also lead to tooth decay and tooth loss. This is the reason why the track is not enough.
Another situation is that when people are old, their gums are loose and they can't hold their teeth. Xin Qiji once wrote a song "Tooth Loss", describing his old age and tooth loss. It's like this: the math is falling [Song] Xin Qiji's strong is not strong, and the soft is hard to destroy. If you don't believe me, open your mouth. Look, your tongue fell into your teeth first. There are two compartments on both sides with a gap in the middle. When it comes to talking, the dog will follow you.
People's teeth are falling out because the gums are loose and the teeth can't stand up. This is a natural phenomenon, and we can only accept it calmly. What else can we do? I can't hold my eyes!
Why did the hard crossbow string go first? Of course, because every time the crossbow machine tightens the string, it tightens the bowstring first and then buckles the arrow on it, which is faster than the crossbow machine, so it breaks first, and the string is much thinner than the crossbow arm, thin and tired. Whoever doesn't break the string first breaks it first. The same is true of steel knives. The blade is thin and thin, and the blade is mainly used to cut vegetables. Naturally, it is the first life to be hurt. Therefore, Xianwen said that "the hard crossbow string breaks first, and the steel blade hurts itself."
Thank you for your encouragement.