一个人的死亡，与其说是他自己的事，不如说是生者的事。
A man’s dying is more the survivors’ affair than his own.
数学的本质在于它能够揭示宇宙中隐藏的模式和结构。
The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.
History is merely a list of surprises. It can only prepare us to be surprised yet again.