Teaching is my greatest work of art.
教学是我最伟大的艺术作品。
Mathematics is the key to understanding the universe.
我不说唱，我只制造热门歌曲。
最持久的变化来自于理解问题的根本原因，而不仅仅是症状。
The deeper the pain, the more profound the art.
The speed of learning determines the speed of growth.
Those who make peaceful revolution impossible will make violent revolution inevitable.