一流智力的检验标准是同时在大脑中持有两种相反的想法，并且仍然保持功能的能力。
Technology must return to its essence and solve real problems.
There is no absolute security, only relative risk control.
获得智慧是一种道德责任，它不仅仅是为了让你们的生活变得更加美好。有一个相关的道理非常重要，那就是你们必须坚持终身学习。如果不终身学习，你们将不会取得很高的成就。光靠已有的知识，你们在生活中走不了多远。
Wisdom acquisition is a moral duty. It’s not something you do just to advance in life. And there’s a corollary to that proposition which is very important. It means that you’re hooked for lifetime learning, and without lifetime learning you people are not going to do very well. You are not going to get very far in life based on what you already know.
To write is to exorcise the demons that live within us.
The function of freedom is to free someone else.
To do great things is difficult，but to command great things is more difficult.