The point of this text is that when Edison was 7 years old, his mother got appendicitis. Because it was too late to go to the hospital and the lights at home were dim, he came up with a way to focus light with a mirror to make his mother's operation successful.
Wen Rumin, editor-in-chief of Chinese Textbooks published by People's Education Publishing House, said in an interview that the society pays special attention to Chinese textbooks, which is helpful for the compilation of textbooks. However, the compilation of teaching materials is very academic after all. If there is a problem, it is best to solve it through academic discussion, which is easy to generalize and gain public opinion. This situation is not conducive to the compilation of Chinese textbooks. Therefore, the society should pay attention to Chinese textbooks rationally, not just arguing endlessly on the level of impression and emotion.