如果你只经历过美好的事情,你就不可能勇敢。
了解你是否能信任某人的最好方法就是信任他们。
定言命令只有一条,那就是:要只按照你同时能够愿意它成为一条普遍法则的那个准则去行动。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
你永远不会太老去设定另一个目标或梦想一个新的梦想。
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