爱国英雄给民族带来光荣，专制暴君给民族带来灾难。
The city is like a great palimpsest, a manuscript that has been written and rewritten over the centuries.
领导层的多样性带来了推动更好决策的不同观点。
组合数学就像是不用实际计数的计数艺术。
奋斗永不停歇。
Mathematics advances not by the efforts of individuals alone but through the collective work of generations.