【原文】宰予昼寝。子曰：“朽木不可雕也，粪土之墙不可圬也，于予与何诛?”【译文】宰予白天睡觉。孔子说：“真像腐朽的木头一样无法再雕琢，像粪墙一样不能再粉刷了，对于宰予这个人，我还责备他什么呢?”孔子又说：“开始时我对于人，是听了他的话就相信他的行为；现在我对于人，是听了他的话，还要观察他的行为。宰予使我改变了观察人的方法。”

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

The essence of Gestalt psychology is to understand the laws of the organization of the whole.

The beauty of mathematics lies in its ability to simplify complex ideas into elegant structures.

真相很少是纯粹的，也从来不是简单的。

债券市场是未来经济活动的最终预测者。

People are just as wonderful as sunsets if you let them be. When I look at a sunset, I don't find myself saying, 'Soften the orange a bit on the right hand corner.' I don't try to control a sunset. I watch with awe as it unfolds.