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书籍是镜子:你只能在其中看到你内心已有的东西。
Every mathematical problem is a window into a new world of understanding.
In mathematics, as in life, the most elegant solutions often arise from a deep understanding of the problem.
比喻在趋势或机遇面前,即使能力普通的人也能获得成功
The most profound question is not about the existence of God, but about the existence of the world.