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数学不仅仅是关于数字、方程、计算或算法:它是关于理解的。
There is only one boss. The customer. And he can fire everybody in the company from the chairman on down, simply by spending his money somewhere else.
译文:西风落日下野草斑驳,秋日天空云淡风轻,一只孤鸟飞过。我这个两鬓斑白的游子,又骑着马登上了太行山。