How wonderful that we have met with a paradox. Now we have some hope of making progress.

"The dead are never far from us. They're in our hearts and on our minds and in the end all that matters is love."

伟大的领导者会带领人们去他们不一定想去但应该去的地方。

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。

可以依赖的激情是恐惧。