It is an immutable law in business that words are words, explanations are explanations, promises are promises but only performance is reality.

    商业世界中一条恒古不变的真理是，文字就是文字，解释就是解释，承诺就是承诺，唯有绩效才是现实。

    ——哈罗德•吉宁（Harold Geneen, 管理学者）