创造力不是奢侈品；它是过上有意义生活的必需品。

A problem is in P if it can be solved quickly by a computer, and in NP if a solution can be verified quickly.

The ultimate goal of machine learning is to make machines that can learn from experience and improve their performance over time.

The reason I run is to define life.

读书人如同国家的宝物，儒生就像宴席上的佳肴一样，值得珍重。