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"真正的自由不是没有束缚,而是在束缚中找到自己的方向。"
智力是当你不确定该做什么时所使用的东西。
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.
The best weapon of a dictatorship is secrecy, but the best weapon of a democracy should be the weapon of openness.