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"The past is always with us, and it shapes who we are."
The greatest problem for mathematicians now is probably the Riemann Hypothesis.
The past is full of voices—we just have to listen.
大国总是在寻找机会以牺牲对手为代价来获取权力,如果他们认为使用武力会带来利益,他们就会使用武力。