系统的稳定性取决于开环传递函数在复平面上的行为。

释义：杜绝不良嗜好，禁止过度欲望，从而摆脱牵累；抑制错误行为，减少邪恶之事，从而消除过错；减少饮酒，远离美色，从而保持自身清白。这是对修身养性、克制欲望的教导。 

"The future is not a result of choices among alternative paths offered by the present, but a place that is created—created first in the mind and will, created next in activity."

The books that the world calls immoral are books that show the world its own shame.

煤炭行业不仅仅是挖掘地面，更是为未来提供动力。

The story is not in the words; it's in the struggle.

A clear vision is the foundation of any successful business.