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War is an ugly thing， but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth a war， is much worse.

離散數學與計算機科學之間的相互作用一直是創新和發現的沃土。

譯文：想要看清一個人，應當看看他交的是什么朋友。