To solve a problem, you have to be willing to think differently.

我不需要完美。我只需要足够好。

The modern state is characterized by its ability to concentrate and use power effectively.

追求数学知识是一段永无止境的旅程；总有更多的东西等待发现和理解。

夏天的飞鸟，飞到我窗前唱歌，又飞去了。秋天的黄叶，他们没有什麼可唱的，只是叹息一声，飞落在那里。