在一个不自由的世界里,唯一能做的就是变得绝对自由,以至于你的存在本身就是一种反抗。
"The silence around words is as important as the words themselves."
人们早已忘记了这个道理。可是你不应将它遗忘。你必须永远对自己所驯服的东西负责。你要对你的玫瑰花负责。
关爱别人,这是最为博大的;使别人受益,这是最为深厚的。 
We teach a subject not to produce little living libraries on that subject, but rather to get a student to think mathematically for himself.
唯一真正的快乐是创造的快乐。
The world changes when people decide to do things differently.