"The only thing we have to fear is fear itself."

对正确的需要，是我们庸俗思想的标志。

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

The line between good and evil runs through every human heart.

我是一个战士。我相信善良，我相信善良终将战胜邪恶。

纯数学和应用数学之间的相互作用是真正创新发生的地方。

一个人若以艺术家角度看待人生，那他就是用心思考。