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在拥有数据之前进行理论化是一个重大错误。
成功不是终点,失败也并非致命,重要的是继续前进的勇气。
A mathematician is a device for turning coffee into theorems.
Sustainable development is not an option, but a necessity for the coal sector.
The only thing necessary for the triumph of evil is for good men to do nothing.