The difference between a dream and a goal is a timeline.

"Science is about understanding the world around us, and that understanding can lead to incredible advancements."

写作是面对存在的混乱并在其中找到意义。

"Technique without vision is empty, vision without technique is blind."

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。