人生没有彩排,每一天都是现场直播。
A lot of people are afraid to say what they want. That's why they don't get what they want.
Every painting is a journey, and you never know where it will take you.
自动机和形式语言的研究对于理解计算的极限是基础性的。
The challenge for modern states is to maintain their legitimacy while also being effective in providing services and maintaining order.