每一本书都是一次旅程，每一次旅程都是一本书。
最大的谜团是我们自己创造的谜团。
数学的语言是普遍的，正是通过这种语言，我们才能传达宇宙最深刻的真理。
A lady's imagination is very rapid; it jumps from admiration to love, from love to matrimony in a moment.
如果两分钟后觉得无聊，就试四分钟。如果仍然无聊，就八分钟。然后十六分钟。然后三十二分钟。最终你会发现它一点也不无聊。
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.