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I think the most important thing in life is to be able to look at yourself in the mirror and like what you see.

It's not about how hard you hit. It's about how hard you can get hit and keep moving forward.

PAC學習框架提供了一種正式的方法來分析學習算法的效率和有效性。

不作為的代價遠大于行動的代價。