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Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.

A man of genius makes no mistakes. His errors are volitional and are the portals of discovery.

I don't believe in the concept of a 'comfort zone.'

事實是，我有一半的時間不知道自己在做什么，但我自信地去做。