The challenge in system identification is not just to fit data, but to extract meaningful and generalizable models.
系统辨识的挑战不仅在于拟合数据，还在于提取有意义且可推广的模型。
The beauty of poetry lies in its ability to transcend time and space.
人无远虑，必有近忧。如果做事没有计划，毫无思想准备，就不能从容应付突如其来的事情。