相位裕度是系统在变得不稳定之前可以容忍的程度的度量。
The past is a shadow that follows us, always present, always influencing.
The deepest principle in human nature is the craving to be appreciated.
The cosmos is all that is or ever was or ever will be.
Love is the only way to grasp another human being in the innermost core of his personality.
Art is the most efficient way to short-circuit the rational mind.
任何白痴都能面对危机;磨损人的是日复一日的生活。