The deepest principle in human nature is the craving to be appreciated.
请务必花时间阅读纪念碑旁边的铭文细节。
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.