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"Wir sind nicht nur verantwortlich für das, was wir tun, sondern auch für das, was wir nicht tun."
质量比数量更重要。一个全垒打比两个二垒安打好得多。
You can't let praise or criticism get to you. It's a weakness to get caught up in either one.
A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.