You see those uncivilized behaviors in the picture, tell me what the consequences will be, and tell me the meaning of civilization and harmony.

My name is Xiaocao. I wave and smile at you every morning. However, one foot came and stepped on me. The name of "I" is the wall, which has sheltered you from the wind and rain for many years. However, I was scratched by a hand holding only a pen. My name is canteen. For a long time, a reasonable combination of delicious meals can lead to healthy growth. However, it attracted a group of crazy hungry wolves. There are many such voices, sometimes echoing on campus. This is the tragedy of the grass, the complaint of the wall and the kettle ... these voices that do not belong to the campus come from our usual behavior. In order to seize the time, many students have stepped on the lawn. Many students like painting on the wall, and many students fight with each other while eating. You may see several students crossing the lawn in order to cut corners and save time. You may hear a few seemingly quiet girls pop up a few dirty words unexpectedly; You may meet someone who bumps into you and walks away without saying hello; You may see a group of students rush to the canteen when the bell rings in the fourth class in the morning ... whenever you see all this, you will feel how disproportionate it is to the development of our material civilization! However, there are still many students who are not ashamed of these uncivilized behaviors and are not surprised, and they defend them and say: It's no big deal, they have been played. Is it really a small matter? We should drink to those who have such confused thoughts: "Wrong! If this development is allowed to continue, where is civilization? What about politeness? " What good habits should I develop? For example, in school, you should say "hello" enthusiastically when you meet a teacher, "sorry" when you bump into someone, and "thank you" when someone helps you ... these are the minimum requirements of politeness. With these habits, you can have the basic qualities of a civilized person. But these habits are not innate and need to be gradually developed. Students, when building socialist spiritual civilization, it is very necessary for everyone to form the habit of being polite, especially the middle school students in contemporary riding schools should start from small things and start from themselves. Students, let's infect people with civilized language and be kind to people with civilized behavior!