投资者的主要问题——甚至可能是他最坏的敌人——很可能是他自己。
The investor's chief problem - and even his worst enemy - is likely to be himself.
You can't manage what you don't measure, and you can't improve what you don't manage.
The documenta must always remain a question, never an answer.
We are like travelers who have lost their way； we must ask， each one， for directions from a passerby.
The more you do, the more you learn. The more you learn, the more you can do.
My favorite things in life don't cost any money. It's really clear that the most precious resource we all have is time.