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我不惧怕任何人,但我尊重每一个人。
如果你愿意,我们可以回到那个山洞。
The study of mathematics is a constant dialogue between the concrete and the abstract.
You can't just give up on something because it's hard.
A company can outperform rivals only if it can establish a difference that it can preserve.
The self is not so much a substance as a process, and it is the continual task of education to change the process, to develop its activities, and to guide it into channels of efficiency.