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I don’t think you should spend much time being unhappy about the bad breaks. You get a lot of them, but you also get a lot of good ones. The thing to do is just to maximize your odds of using the good ones and minimizing the effects of the bad ones.

知道什么不該做，才能知道自己該做什么！這選擇的力量，太重要了！并且知道什么時候該說“不”，才能更好地專注于真正重要的事情！

I have already carried out my duty. I have proved the Poincaré conjecture and I have nothing more to do in mathematics.