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A mathematician is a person who can find analogies between theorems; a better mathematician is one who can see analogies between theories and the best mathematician can notice analogies between analogies.
在科学中,唯一不变的就是变化。
Crises often hide opportunities, the key is how to seize them.
我的语言的界限意味着我的世界的界限。
Organic farming is not a step back, but a leap forward in quality and responsibility.