Don't feel bad……there are a lot of people in this world who don't know who they are or what they are.
别难过……世界上有许多人还不知道他们到底是谁或什么。
自由的土地上,人人都是国王。
控制的挑战在于在存在不确定性的情况下使系统工作。
Mental phenomena can only be understood in terms of their consequences for action.
Hardware is the skeleton of innovation, software is its nervous system, but human need is its beating heart.