My lesson is that "enjoyment is also destruction". To expand more on this sentence, I think that human development has brought great burden on the environment and animals living here, too. As we are enjoying the benefits of technology development, other parts of the environment suffer from it while we don't usually see. People should think more about maintaining an environment that is sustainable to the future so that our children still have a place to stay hundreds of years later.
I want to make the word "development" to stress the idea that people should care more about these technology bring harm to the earth. I will find pieces of plastic strall, plastic bags, cans, and other stuff representing human technology that are harmful to the environment to make up the word "development". Having them placed on soil represents their harm to the earth and where all trash end up in the landfills. At last, set one edge of the word on fire and capture the moment when almost half the word is on fire and there are dark smoke coming out.