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User needs always come first, and what we need to do is continuously meet their demands.
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
喜欢责备别人的人难以维持与别人的交情,经常原谅自己过失的人永远不可能改正错误。骄傲自满的人必定失败,自我夸耀的人愚蠢可笑,自我戕害的人必然害己害人。多说话而得到好处,不如沉默而不受伤害。
The linear economy is a system that is fundamentally flawed. It is a system that takes, makes, and wastes.