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。
不要只追逐金钱,追求卓越,金钱自会跟随。
你不必完美也能很了不起。
The biggest risk to business is not taking any risks on sustainability.
The world is a stage, but the play is badly cast.