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每一个数学定理都是一个故事,一个通过逻辑和理性展开的叙述,引领我们更深入地理解世界。
When I approach a child, he inspires in me two sentiments; tenderness for what he is, and respect for what he may become.
You can't judge a book by its cover, but you can by its first chapter.
混凝土是我们时代的大理石,一种民主的材料。