The law, in its majestic equality, forbids the rich as well as the poor to sleep under bridges, to beg in the streets, and to steal bread.

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。

最大的风险是不承担任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。