每一个数学定理都是一个等待被讲述的故事，一个等待被解开的谜团。
Every mathematical theorem is a story waiting to be told, a mystery waiting to be unraveled.
The only real elegance is in the mind; if you've got that, the rest really comes from it.
慈悲：开始在家里，并通常保持在那里。
"The past is never dead. It's not even past."
The desires， and other passions of man， in themselves， are in his own power； his real difficulties are， to know when they are to be controlled， and when not.
译文：花开花落已两载，看着盛开的花，想到两年未曾回家，就不免伤心落泪。小船还系在岸边，虽然我不能东归，飘零在外的我，心却长系故园。
开放的社会、对知识的无限制获取、人们为推进知识而进行的无计划和无拘束的联合——这些可能使一个庞大、复杂、不断增长、日益专业化和技术化的世界，仍然是一个人类共同体的世界。
