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。
每把锁都有钥匙，每个问题都有解决方案。
The best way to predict the future is to create it.
The moment you recognize what is beautiful in this world, you stop being a slave.
有人居住的世界的界限是由人类知识的范围决定的。
"The ordinary is extraordinary if you look at it long enough."
The legislative cannot transfer the power of making laws to any other hands: for it being but a delegated power from the people, they who have it cannot pass it over to others.
Success is a journey, not a destination. Keep pushing forward.
我认为你永远无法真正准备好失去你所爱的人。