质量不是成本；它是一种投资。

The trouble with most people is that they think with their hopes or fears or wishes rather than with their minds.

The beauty of literature lies in its ability to transcend time and place.

孔子说：“不怕没人了解自己，就怕自己不了解别人。”

如果你担心从自行车上摔下来，你就永远不会骑上去。

我一直在寻找新的声音。

P与NP问题是计算机科学中最重要的未解决问题之一。