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If you can't understand why someone is doing something, look at the consequences of their actions, whatever they might be, and then infer the motivations from their consequences.

理論物理學的美麗在于它能夠用幾個簡單的方程描述宇宙，揭示出表面復雜性之下的基礎簡單性。

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成功不是終點，失敗也不是致命的：重要的是繼續前進的勇氣。