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数学研究是一次进入未知的旅程,每一次发现都为新的谜题打开了大门。
The study of mathematics is a journey into the unknown, where each discovery opens the door to new mysteries.
You have to reject one expression of the human condition before you get to the music.
The farmer is the only man in our economy who has to buy everything at retail, sell everything at wholesale, and pay the freight both ways.