成功辨识的关键是找到一个足够灵活的模型结构，以捕捉系统的基本特征，同时又足够简单，可以从现有数据中估计出来。
The important thing is not to stop questioning. Curiosity has its own reason for existing.
A story is a letter that the author writes to himself, to tell himself things that he would be unable to discover otherwise.
If you don't design your own life plan, chances are you'll fall into someone else's plan. And guess what they have planned for you? Not much.
伟大的领导者不创造追随者，他们创造更多的领导者。