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"The past is never dead. It's not even past."
To be happy, we must not be too concerned with others.
成功绝非偶然。它是努力工作、坚持不懈、学习、研究、牺牲,最重要的是对你正在做或正在学习做的事情的热爱。
The habit of reading is the only enjoyment in which there is no alloy; it lasts when all other pleasures fade.
若要优美的嘴唇,要讲亲切的话。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.