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NP-completeness is not just a theoretical curiosity; it has profound implications for practical computing.
I think that everything is possible if you put your mind to it.
自由主义与共产主义之间,或民主与威权主义之间的伟大意识形态斗争,已被对自由民主可取性的一般共识所取代。
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."