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.

模形式的算术是窥探宇宙隐藏结构的窗口。

煤炭行业必须进化，否则有过时的风险。适应是生存的关键。