北极仅有一盏路灯，南极也只有一盏；唯独北极的点灯人和他南极的同行，过着闲逸懒散的生活：他们每年只工作两次。

The test of a first-rate intelligence is the ability to hold two opposed ideas in mind at the same time and still retain the ability to function.

成功来自于经过计算的风险，而不是鲁莽的冒险。