Mathematics is a language that allows us to describe the indescribable.
在糟糕的时候抱有希望不仅仅是愚蠢的浪漫。这是基于人类历史不仅是残酷的历史,也是同情、牺牲、勇气和善良的历史。
The best leaders are those who listen more than they speak.
最危险的艺术是让人思考的那种。
We must constantly look at things in a different way.