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A good mathematician is someone who can see analogies between theorems; a great mathematician is someone who can see analogies between analogies.
信念不是被动等待,而是主动的想象和感受。
科学尚未教导我们,疯狂是否就是智力的至高境界。
The hardest part of returning to a truly wild environment is leaving behind the mechanical distractions of modern life.