唯一存在的限制是你自己设定的。
The only limits that exist are the ones you place on yourself.
商业的成功源于理解人,而不仅仅是产品。
系统的稳定性取决于开环传递函数在复平面上的行为。
The greatest threat to our forests is not the axe, but indifference.
"The world is full of stories, but the stories are all one."