Among the older generation of scientists in our country, many people have studied abroad and returned to work. Mao Yisheng, a famous bridge expert, went to the United States to study at the age of 20 in 19 16, and became a graduate student majoring in bridges at Cornell University, and soon obtained a master's degree with excellent results. In order to get the opportunity of practice, he attended classes in the evening, studied for a doctorate, and worked as an intern in a bridge company during the day, drawing, cutting steel parts, riveting and painting by himself, and finally became a talent who knew both theory and technology. Americans admire him very much, and letters of appointment were sent from all over the country, asking him to be an engineer.

However, Mao Yisheng did not accept the invitation, but decided to return home. Someone in the United States advised him: "Science has no motherland and transcends national boundaries. The contribution of scientists belongs to all mankind. The conditions in China are poor, and your contribution to staying in the United States will be even greater. " Mao Yisheng replied: "Although science has no motherland, scientists have a motherland. I am a native of China, and my motherland needs me more. I want to go back to serve the motherland! "

19 19, Mao Yisheng returned home with all his skills and began to build bridges for the country. The magnificent Qiantang River Bridge in Zhejiang was designed and built by Mao Yisheng.

wen tianxiang

Wen Tianxiang, a national hero in the Southern Song Dynasty, was defeated and captured, and spent three years in a dungeon, repeatedly refusing to discuss with the enemy. One day, Yuan Shizu Kublai Khan personally came to the dungeon to persuade him to surrender. He didn't waver, but said bluntly, "I just want to die for my country!" "

Before the execution, the executioner approached and said, "General Wen, if you change your mind now, you can not only avoid death, but also become the prime minister." Wen Tianxiang thundered, "If you die, you die. What nonsense are you talking about! " So Wen Tianxiang faced the south and died generously. Wen Tianxiang left a touching song of righteousness and peace before his death.