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。
The beauty of mathematics only shows itself to more patient followers.
我一直更喜欢研究具体问题而非抽象理论。
Leadership is about making tough decisions, not just popular ones.
"A wordless book speaks in a universal language."
作家的生活是一种屈辱的生活。
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.