For the past 33 years， I have looked in the mirror every morning and asked myself: 'If today were the last day of my life， would I want to do what I am about to do today？' And whenever the answer has been 'No' for too many days in a row， I know I need to change something.

世界不是要解决的谜题，而是要经历的神秘。

The uniform， constant， and uninterrupted effort of every man to better his condition， the principle from which public and national as well as private opulence is originally derived.

Life is a never-ending struggle between memory and forgetting.

生物为生存而进行的普遍斗争，不是为了原材料，也不是为了能量——能量以热的形式大量存在于每个物体中（可惜无法转化）；而是为了熵，它通过能量从炽热的太阳转移到寒冷的地球而变得可用。