We don't stop playing because we grow old; we grow old because we stop playing.
我们不是因为变老而停止玩耍,而是因为停止玩耍而变老。
世界就是它本来的样子;那些什么都不是的人,那些允许自己变得什么都不是的人,在这个世界上没有立足之地。
The highest possible stage in moral culture is when we recognize that we ought to control our thoughts.