简单的生活是高层次的思考。
"You can't manage what you don't measure."
Never stop learning—the moment you think you know everything is the moment you start falling behind.
永远不要停止学习——当你认为自己什么都懂的那一刻，就是你开始落后的时刻。
医生知道的如此之少，收费却如此之高。