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A good mathematician is not one who knows all the answers, but one who asks the right questions.
永远别把自己太当回事。没人在乎。
理解就是知道什么导致什么。
如果你没有失败,说明你不够努力。
The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?
I could be bounded in a nutshell and count myself a king of infinite space.