We live in a world of shadows, and what we call reality is only the shadow of a shadow.

It's not about how bad you want it. It's about how hard you're willing to work for it.

领导者的工作不是拥有所有答案，而是提出正确的问题。

大自然倾向于在她所有的作品中产生恒常性，但并不总是成功。

自动控制的艺术在于正确调整修正力。