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。
感恩是负面情绪的解毒剂，是嫉妒、敌意、担忧和愤怒的中和剂。
Success in this industry requires both vision and execution.
人类的历史是在不同气候条件下为生存而斗争的记录。
真相是，生活既美妙又可怕，既迷人又恐怖，既甜蜜又苦涩，这就是一切。