Natural experiments can provide valuable insights into economic questions.
"真相是一场游戏，而游戏是一面镜子。"
"Kindness is a language that everyone can understand."
Everyone can be taught to sculpt: Michelangelo would have had to be taught not to. So it is with great programmers.
我想带着我的粉丝们一起踏上旅程。
The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.
Challenges are opportunities in disguise. Embrace them to grow stronger.