Success is not about the money, it's about the love.
尊重你的努力,尊重你自己。自尊带来自律。当你两者都牢牢掌握时,那就是真正的力量。
If you're not moving forward, you're falling behind.
相位裕度是系统在变得不稳定之前可以容忍的程度的度量。