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You can't get to the top by being nice.
生活艰难,事情并不总是顺利,但我们应该勇敢冒险,毫不犹豫地迈出下一步。
Program testing can be used to show the presence of bugs, but never to show their absence!
不要为了得到世界而失去你的灵魂,智慧比金银更宝贵。