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解决数学问题的喜悦是无与伦比的;这是纯粹的智力胜利的时刻。
The joy of solving a mathematical problem is unparalleled; it is a moment of pure intellectual triumph.
Like the meeting of the seagulls and the waves we meet and come near. The seagulls fly off,the waves roll away and we depart.
记忆是个奇怪的东西,它不像相机或录音机那样工作,它会重建事物,用现在的剪刀剪辑过去。