I am a citizen of the world and should be born for mankind. (Nobel) People need to have a heart that sacrifices their own selfish interests. (Turgenev) The night quietly blooms flowers, but the day accepts thanks. (Tagore) For people, the greatest happiness and happiness is to give their spiritual strength to others. (Suhomlinski) 2. Unite and struggle. Behind every effort, there must be a double return. -william james May Those who make unremitting efforts will succeed where people fail. Stunder's innate environment is not surprising. The key to success lies in your own efforts. -Wang Yongqing 3, regardless of the body, always think about it, and die for the country's urgency. -(Korea) Sima Qian