A hundred years ago, a group of passionate young people lifted the torch of truth and opened up the cause of transcendence. A hundred years later, countless spirited young people took on the heavy responsibility of history and devoted themselves to the journey of national rejuvenation. Time flies, times change greatly, and youth is in a continuous stream. Set sail amidst the wind and rain. In the summer of 1921, in Nanhu Lake, Jiaxing, Zhejiang, they had a resolute expression and a firm gaze. The announcement of the founding of the CPC was like thunder breaking through the darkness, bringing hope to the old China in the twilight. One representative had an average age of 28 years, which was exactly the age of Mao Zedong at that time. On July 1, 2021, at Tiananmen Square in Beijing, the red flags were like a sea and the flowers were dazzling. At the centennial celebration of the CPC, the youth representatives wore shining regimental emblems and bright red scarf, loudly shouting the sonorous oath of "please rest assured that the party and make a strong country have me". Aspiring to a thousand years of work, often for the sake of youth. I have attended countless classes from childhood to adulthood. One of the lectures was unforgettable to Li Qiyu, a student from Huazhong University of Science and Technology in Macau. A rare meeting between pen pals, the words were profound - "Chinese civilization is the only ancient civilization that has not been cut off. Five thousand years of history is the source of our cultural confidence." "Understanding the humiliating history of the Chinese nation after the Opium War, we can have a deeper understanding of the strong desire of the Chinese people for the great rejuvenation of the Chinese nation now. Young people are the soul of the country. The ideals and beliefs of young people are related to the future of the nation. Pei Xianfeng's speech was full of vitality and sharpness. This' 90s generation 'rural child, through diligent learning and hard practice, has become a skilled welding technician in just a few years, making him a global leader