“唯一真正无限的是人类的灵魂。”

In computer science, we often find that the simplest solutions are the most elegant.

石墨烯是一种灰姑娘材料：它一直存在，但没有人注意到它。

The method of psychology must be as exact as the methods of the natural sciences.

抽象允许一种自由，而具象有时无法做到。

罗马帝国为什么垮台？什么是拉丁语办公室自动化？

You have to be willing to make mistakes; the big thing is to not make the same mistake over and over again.