奈奎斯特准则提供了一种图形方法来确定闭环系统的稳定性。
领导力不是掌控,而是照顾你负责的人。
"We die. That may be the meaning of life. But we do language. That may be the measure of our lives."
感恩可以将平凡的日子变成感恩节,将日常工作变成快乐,并将普通的机会变成祝福。
Start where you are, with what you have. Make something of it. Never be satisfied.