When you are stuck， explain your problem to others. Often simply laying out a problem will present a solution. Make “explaining the problem” part of your troubleshooting process.

君子重视自身的努力，而不羡慕上天的恩赐；小人放弃自身的努力，而羡慕上天的恩赐。

我不是说唱歌手，我是一个数学的传奇。

要重生，首先你必须死去。

孤独是清醒的代价。