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。
解释：兵器既不齐全又不锋利，实质上和没有兵器一样！
I think it's important to have a good hard failure when you're young... I learned a lot from that. Because it makes you kind of aware of what can happen to you. Because of it, I've never had any fear in my whole life when we've been near collapse and so on. I've never been afraid.
Silence is argument carried out by other means.
The present is always changing, but the past is fixed.
历史不仅仅是发生了什么，而是我们记得什么以及我们如何记得它。