"The secret to writing for children is remembering what it felt like to be a child."

"The world is a mysterious place, and we are all just trying to find our way through it."

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。

I think that one should recognize the reality even when one doesn't like it; indeed, especially when one doesn't like it.

答案，我的朋友，在风中飘荡。