Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
控制的目的是使系统在存在不确定性和干扰的情况下仍能按期望的方式运行。
The most successful businesses are those that understand their customers better than anyone else.
The key to successful investing is to have a clear strategy.
I don't think you should ever have to apologize for your excitement. Just because something's cliché doesn't mean it's not awesome.