NP-completeness is not just a theoretical curiosity; it has profound implications for practical computing.

Quality is not a promise; it is a result.

历史的地理枢纽是世界上最有可能是权力所在地的区域。

君子有九种事情需要考虑到：看，要考虑是否清楚；听，要考虑是否明确；脸色，要考虑是否温和；容貌，要考虑是否恭敬；言语，要考虑是否忠实；做事，要考虑是否认真；疑惑，要考虑是否求教；愤怒，要考虑是否有后患；利益当前，要考虑是否该伸手。

Everyone is worthy of love, except him who thinks that he is.

艺术家的角色是让不可见的东西变得可见。