To build a better world, all countries need to exchange and learn from each other. You are determined to be the vanguard of the progress of the times and the pillar of national rejuvenation, which is the original intention of building Nyerere leadership college. Youth is always accompanied by dreams. I hope you will put what you have learned into practice, build on your hard work, and inspire your youth and aspirations on the journey to realize the dream of national rejuvenation and African rejuvenation. I hope you will consciously shoulder the responsibilities and missions entrusted by the times, actively participate in the cause of China Africa friendship, inherit and carry forward the spirit of China Africa friendship and cooperation, and contribute to the building of a high-level China Africa community with a shared future. Recently, the seminar for young and middle-aged cadres of the six sister parties in southern Africa of Nyerere leadership college was held in Tanzania. The theme of the seminar was "new era and new development: Exploration and exchange between the Communist Party of China and the six sister parties in southern Africa". 120 young and middle-aged cadres from the six sister parties in southern Africa participated in the seminar. (Xinhua News Agency)