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理解数学就是理解现实的构造。
To understand mathematics is to understand the fabric of reality.
Compliment people behind their back. It’ll come back to you.
人无国王、庶民之分,只要家有和平,便是最幸福的人。
It is to the credit of human nature, that, except where its selfishness is brought into play, it loves more readily than it hates.