25-year-old Einstein dared to break through the sacred authority circle, boldly broke through, appreciated Planck's hypothesis and extended it in depth, put forward the theory of light quantum, laid the foundation of quantum mechanics, and then resolutely destroyed Newton's absolute view of time and space.

During the Spring and Autumn Period, there were two vassal states in Henan, one was Zheng and the other was Zheng. In 7 12 BC, a war was launched against Zheng. Although these two client countries are small; However, Ann's manpower and material resources are much less than Zheng's, and her military strength is much weaker. The war naturally ended in Xi 'an's failure. Afterwards, some knowledgeable people analyzed that Xi 'an was going to die. Their analysis is based on the following reasons: firstly, Ann didn't consider her own virtue; secondly, she didn't estimate whether her own strength could win; thirdly, she didn't win a good relationship with a country close to her; fourthly, she didn't tell the truth about attacking Zheng; fifthly, she didn't distinguish the sin of failure. Sure enough, our country was soon destroyed by Chu. A mountaineer, when climbing Mount Everest, was exhausted and stopped when he reached the height of 8000 meters. Later, when he told people about it, people felt sorry for him. Why didn't he persist? Why not climb higher? Why not grit your teeth? "No, I know best. 8000 meters is the highest point I climbed, and I have no regrets at all. "