"Nothing ventured, nothing gained" comes from the biography of Ban Chao in the later Han Dynasty, which means that you can't succeed without going through difficulties and obstacles. It also refers to the need to gain true knowledge through practice.
Historically, this allusion was used in Romance of the Three Kingdoms and Biography of Monroe. Chen Shou's Biography of the Three Kingdoms and Monroe said: "Poverty is hard to live, mistakes can be eliminated, and wealth can cause it. Nothing ventured, nothing gained?
Extended data:
Nothing ventured, nothing gained. Example:
1, Mao Zedong's theory of practice: "There is an old saying in China:' Nothing ventured, nothing gained.' This sentence is true for human practice and epistemology. "
2. Nothing ventured, nothing gained; We don't go deep into the mountains; It is difficult to find precious medicinal materials.
3. Cai Dongfan's Romance of the Manchu Dynasty for the third time: "Speaking of the Manchu Emperor, since the founding of the People's Republic of China and the reform of the Yuan Dynasty, he has recruited soldiers to add equipment and learn Japanese affairs. In addition to Huang Honglan's white four-sided flag, he added a flag inlaid with yellow, red, white and blue all around, and * * * became an eight-sided flag, divided into two wings. He has been preparing for more than two years. He was determined to set off, but he couldn't think of anything, and he just wanted to destroy it.
Baidu Encyclopedia-Nothing ventured, nothing gained