Ideas are everywhere, but knowledge is rare.

I'm not afraid of death, I'm afraid of not trying.

快乐的唯一方法是热爱你所做的事情。

In times of change, the learners inherit the earth, while the learned find themselves beautifully equipped to deal with a world that no longer exists.

系统辨识是从观测到的输入输出数据中建立动态系统数学模型的科学与艺术。

The most effective way to destroy people is to deny and obliterate their own understanding of their history.