有些难过和痛苦是言语无法抚平的。悲伤，是我们为爱付出的代价。

I think that it's important to have a sense of humor in life. It helps you get through the tough times.

做数学就是探索一个无限的思想景观。

语言中最危险的短语是：“我们一直都是这样做的。”

The computing scientist's main challenge is not to get confused by the complexities of his own making.

代数簇的算术是窥探数学隐藏结构的窗口。