A mathematician is a device for turning coffee into theorems.

God is ashamed when the prosperous boasts of his special favour.

The gratitude of every home in our Union goes out to the brave men who have fought and died in the service of our country.

简单比复杂更难：你必须努力工作，才能让你的思维变得清晰，以便使事情变得简单。

"A book is a door. You open it. You step through."

经验只是我们给错误起的名字。

道德不是关于如何使自己幸福的学说，而是关于如何使自己配得上幸福的学说。