不要让恐惧阻止你追求梦想。

War is an ugly thing， but not the ugliest of things: the decayed and degraded state of moral and patriotic feeling which thinks that nothing is worth a war， is much worse.

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 future of physics lies not in discovering new particles, but in understanding the deeper principles that govern the behavior of the particles we already know."

制度主义者……往往自以为非常聪明；他常常如此迷恋于自己设想的政府理想计划的所谓完美，以至于不能容忍对其有丝毫的偏离。

在你能爱别人之前，你必须先爱自己。

生命中你有许多机会闭紧嘴巴。