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科学进步必须以道德指南针为指导。
Scientific progress must be guided by a moral compass.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
I've only slept with men I've been married to. How many women can make that claim?
一个仅仅接受学校教育的孩子是个未受真正教育的孩子。