一个人的价值应该看他贡献了什么，而不是他能得到什么。

最好的还在后头，生命的最后，是为了最初而存在的。

世界是一面伟大的镜子，我们是其中的倒影。

教学的艺术在很大程度上在于唤醒年轻心灵的自然好奇心，并用知识的营养来满足它。

Humor is a child’s way of making sense of the world.

"We are all broken, that's how the light gets in."

The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.

Sometimes we stare so long at a door that is closing that we see too late the one that is open.