Most people are afraid of change, but if you look at it like it's something that can always count on, then it can be a comfort．It doesn't have many things that you can count on．

在数学中，最简单的问题往往导致最深刻的发现。

如果一个国家期望在国民无知的情况下却拥有自由，那么这种期望无论在历史上，还是未来都绝不会实现。如果我们打算抵御无知和捍卫自由，每位美国人都有责任了解一件公共事务的来龙去脉。