数学的历史是人类好奇心和创造力的历史。

大智论道，中智论事，小智论人。

I believe in the power of storytelling. It can change the world.

了解他人是智慧，了解自己是聪明

Mental processes are nature's way of solving life's problems.

"Grief does not change you, Hazel. It reveals you."

没有艺术；没有文学；没有社会；最糟糕的是，持续不断的恐惧和暴力死亡的威胁；人的生活孤独、贫困、肮脏、野蛮而短暂。

If a Nation expects to be ignorant and free in a state of civilization,it expects what never was and never will be....If we are to guard against ignorance and remain free,it is the responsibility of every American to be informed."