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改变始于意识,但需要行动才能带来真正的改变。
数学不是一项观赏性运动。
You have to be passionate about what you do; otherwise, you will never excel.
The true value of a forest isn't measured in board feet, but in biodiversity and carbon sequestration.
In times of change, the ability to learn is far more important than the ability to know.