领导力的货币不是贪婪，而是慷慨。
唯一真正的智慧是知道你一无所知。
海洋的资源并非无限；我们必须以智慧和克制来养殖这些资源。
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.