A 500-word composition on relevant rules

The composition about rules is 500 words.

Rules are everywhere in our lives. Because of the rules, our life can be orderly, and because of the rules, our society can be orderly. Our schools and enterprises can teach and operate normally because of the rules. We should all abide by these rules one by one. The following is a thing about rules that I personally experienced.

That morning, we got up early because I was going to Luopu Park with my sister. This is our chance to go out to play alone, so we are all very happy. I got up today to have lunch there. At nine o'clock in the morning, my sister and I arrived at Luopu Park on time. Although I have been here many times before, my father took me, so I didn't have a good time. The weather is fine this time. My sister and I had a good time. Without any interruption, it's time for lunch. I took out the bread, biscuits and drinks that I had prepared long ago. After playing all morning, my sister and I are already hungry. As soon as we picked up the bread, we wolfed it down. After a while, we ate all the things we brought. I saw that there was no trash can around, so I threw my packing bag on the grass. The white garbage bag was very conspicuous on the grass. My sister was silent. My sister said seriously, "These garbage bags and beverage bottles will pollute the environment. We shouldn't do that in such a beautiful place as Lop Park. If everyone is like you, what will happen to the earth we live in? " "Just throw this once, what will happen?" I said disapprovingly. My sister's voice is more severe. "No, there are signs everywhere in Luopu Park that can't be thrown casually. Even if you don't care about the environment, you must abide by the rules. " After listening to my sister's words, my face burned. I quickly took the garbage from my sister to find the trash can. It took me a long time to find one, so I threw it in. I look back.

This incident reminds me of what the black classmate said in the class "Excellent Teacher": "This is public morality, this is the rule." Yes, protecting the environment is not only a public morality that everyone should have, but also a rule that everyone should abide by.