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学习数学的唯一方法就是做数学。
The only way to learn mathematics is to do mathematics.
The past is a shadow that follows us, a ghost that haunts us.
The truth is not always beautiful, nor beautiful words the truth.
领导力是关于用勇气和同理心做出艰难的决定,即使这些决定不受欢迎。
我不喜欢软弱,我喜欢坚强。