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对民主的最大威胁不是来自外部敌人,而是来自内部腐败和公民美德的丧失。
The most important thing in the programming world is to keep learning and practicing.
Every individual has a place to fill in the world and is important in some respect whether he chooses to be so or not.
One of the first things taught in introductory statistics textbooks is that correlation is not causation. It is also one of the first things forgotten.