生活是世界上最罕见的事情。大多数人只是存在，仅此而已。
"To live is the rarest thing in the world. Most people exist, that is all."
The essence of mathematics lies in its freedom.
The most important thing is to keep the audience engaged.
Confidence is the most beautiful thing you can possess.
预测未来的最好方法就是创造未来。