Every note has to mean something.

成功辨识的关键是找到一个尽可能简单但不过于简单的模型。

The great thing about being old is that you don’t have to worry about the future.

Investors should avoid making decisions based on fear or greed.

战争不是解决问题的手段，只是表明问题的失败。

"The search for knowledge is the only journey worth taking."

合理储蓄，积极投资。学习你所应学。