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。
如果我们想保护森林，就必须先了解它们。
幽默是伟大的，是拯救的。一旦它出现，我们所有的烦恼和怨恨都会消失，取而代之的是一种阳光的精神。
People can be really smart or have skills that are directly applicable, but if they don't really believe in it, then they are not going to really work hard.
"The best stories are those that refuse to be finished."
The fact that people are full of greed, fear, or folly is predictable. The sequence is not predictable.