系统的稳定性取决于开环传递函数在复平面上的行为。
Art is the antidote to indifference.
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
If you pick up a starving dog and make him prosperous, he will not bite you. This is the principal difference between a dog and a man.
The secret of life is not just to survive, but to thrive with passion, compassion, humor, and style.
【释义】看得多的人知识广博，听得多的人有见识，拒绝接受劝告的人闭塞不通，只相信自己的人孤立无援。