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The past is a foreign country; they do things differently there.
衡量生命的尺度是思想和行为,而不是时间。
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man. )
在我看来,人类获得对天体事物的洞察所走的道路,几乎与这些事物本身一样值得惊叹。
人类的历史发展表明,最多样化的种族对我们现在所拥有的文明做出了贡献。