幸福是一只温暖的小狗。

活着就是冒险一切。否则，你只是一块随机组合的惰性分子，随宇宙之风飘荡。

I don’t need too much. Glamour and all that stuff don’t excite me. I’m just glad I have the ability to make a difference.

最终，我们都只是故事。

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

The best way to learn econometrics is by doing—working with real data and real problems.