The key to successful identification is to find a model structure that is flexible enough to capture the essential features of the system, yet simple enough to be estimated from the available data.
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。
成功绝非偶然。它是努力、坚持、学习、牺牲，最重要的是热爱你所做的事情。
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
我相信讲故事的力量可以改变世界。
The truth is rarely pure and never simple.
