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Theorems are eternal; their proofs are ephemeral.
The first step in liquidating a people is to erase its memory. Destroy its books, its culture, its history.
The battle for women's rights has been largely won.
最艰难的决定往往需要在短期收益和长期影响之间取得平衡。
旅行就是发现每个人对其他国家的看法都是错误的。