Humans are allergic to change. They love to say, 'We've always done it this way.' I try to fight that. That's why I have a clock on my wall that runs counter-clockwise.

Simple, sincere people seldom speak much of their piety; it shows itself in acts rather than words, and has more influence than homilies or protestations.

A mathematician is a device for turning coffee into theorems.

人类能够达到的最高活动是为了理解而学习，因为理解就是自由。

无法自爱就无法爱人，憎恨自己就一定会憎恨他人。