The best leaders are those who listen more than they speak.《Leadership in the Modern Age》

年轻时，你以为世界是一个可以随心所欲生活的地方。但随着年龄增长，你意识到世界是一个你必须按照必须的方式生活的地方。

我的主要目标之一是制造工具，让工具本身塑造工件，使每个部分都获得恰当比例。

The tears of the world are a constant quantity. For each one who begins to weep, somewhere else another stops. The same is true of the laugh.