The document summarizes the wonders and impacts of science. It discusses how science has revolutionized and improved many aspects of modern life, including transportation, communication, food production, and medicine. However, it also notes that science has brought both benefits and dangers, as it has increased man's power but also exposed humanity to new threats like dangerous weapons. Overall, the document argues that while science has greatly enhanced life, it has also deprived man of some mental peace and made humanity dependent on machines.