The fundamental problem of automatic control is to maintain a desired state in the presence of disturbances.
自动控制的根本问题是在存在干扰的情况下维持期望状态。
The world is a mirror, and we see in it what we are.
The only way to get through pain is to go through it.
The greatest wisdom is to know thyself.
哲学的任务不是提供答案，而是对问题本身提出质疑。
If knowledge can create problems, it is not through ignorance that we can solve them.
The truth is rarely pure and never simple.
你太慷慨了，不会玩弄我。如果你的感情还和去年四月一样，请立即告诉我。我的感情和愿望没有改变，但你的一句话就会让我永远沉默。