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There is no creature on earth half so terrifying as a truly just man.
"The past is a foreign country; they do things differently there."
The beauty of a mathematical idea is that it can be shared and understood across cultures and time.
"书籍是心灵的窗户,透过它们我们可以看到更广阔的世界。"
P与NP问题是计算机科学中最重要的一个问题之一。
It's funny how things work out.