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定义属于下定义的人,而不属于被定义的人。
看一个人的操守,在其利害得失时;看一个人的精力,在其饥饿疲倦时;看一个人的度量,在其面临喜怒哀乐时;看一个人的沉着,在其有惊吓时。
The best way to be happy is to be yourself.
"A book is a mirror: if an ape looks into it, an apostle is unlikely to look out."
The concept of NP-completeness has provided a powerful tool for understanding the complexity of problems.