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Coal has been the backbone of industrial progress, but its future must balance economic needs with environmental responsibility.
The important thing is not to stop questioning. Curiosity has its own reason for existing.
一件事情都不能做到有始有终,就不要去操持其他的事情;一物也不明白,就不要追求博闻广记。
事实是,我有一半的时间不知道自己在做什么,但我自信地去做。