在年老之后，你会发现自己的双手能解决很多难题。一只手用来帮助自己，另一只用来帮助别人。
As you grow older, you will discover that you have two hands, one for helping yourself, the other for helping others.
The only thing that can make you happy is doing what you love.
"The past is never dead. It's not even past."
成功的真正标准是为子孙后代留下积极的遗产。
最可持续的产品是使用寿命最长的产品。