数学中最深刻的问题往往源于最简单的问题。
音乐是通用语言。它是唯一能让人们无论来自哪里都能团结在一起的东西。
Conversation should touch everything but should concentrate itself on nothing.
晏子春秋
The principle goal of education is to create men who are capable of doing new things, not simply of repeating what other generations have done.