" Dear friends, Today, I would like to talk about one of the most important inventions in human history - paper making. Paper making, as we all know, was invented in China around 2,000 years ago. It is a great invention that has revolutionized the way we communicate and record information. Before the invention of paper, people used various materials such as stone, bamboo, and silk to record information. However, these materials were expensive and not suitable for widespread use. The invention of paper solved this problem and made it possible for people to record information more easily and cheaply. Paper making has played a crucial role in the development of human society. It has enabled us to preserve and transmit knowledge, culture, and ideas across generations. It has also enabled us to communicate with each other more effectively, leading to the growth of trade, science, and technology. In addition, paper making has had a profound impact on the environment. By using paper to make books, newspapers, and other publications, we can reduce the use of other materials such as stone, bamboo, and silk, which can be harmful to the environment. Finally, I would like to emphasize the importance of innovation and creativity in our lives. The invention of paper shows us that by being creative and innovative, we can make great contributions to human society and promote the development of our country and the world. In conclusion, the invention of paper making is one of the most significant inventions in human history. It has changed the way we communicate and record information, and has played a crucial role in the development of human society. Let us cherish this great invention and continue to promote innovation and creativity in our lives. Thank you for listening."