My feeling

Time Machine tells us that the world is four-dimensional, and that any one entity must extend in four directions, and that it must have length, width, thickness, and duration. Time Traveler invented the time machine, with the time machine with me to start a wonderful time travel, let me see 80,000 years after the earth's great changes. At that time, all mammals except humans were extinct, and there was a terrible phenomenon of human-eating. By reading this book, I also learned that scientific progress, in addition to human benefits, can also bring disaster to mankind. The rational use of technology will make our lives better, but if the forces of evil are allowed to use technology, mankind will only encounter, and finally self-inflicted. Therefore, we can not blindly develop the natural sciences, but also the development of social sciences, human development and the development of science and technology in parallel.