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.
I want you to know， it isn’t always clear in the beginning because as I said I had been on television since I was 19 years old. But around ’94 I got really clear. So don’t expect the clarity to come all at once， to know your purpose right away.
We are all leaves on the great tree of evolution.