学习计量经济学的最佳方法是通过实践——处理真实的数据和真实的问题。
The best way to learn econometrics is by doing—working with real data and real problems.
应对不自由世界的唯一方法是变得如此绝对自由,以至于你的存在本身就是一种反叛。
You don't have to hold a position to be a leader.