。 。 。伊莎贝尔（Isabel）说的话总是陷入了脑海。记住你拥有的，另一个人没有。这很简单 - 几乎太简单 - 都可以提高，但是，像所有这些家庭建议一样，它表达了一个深刻的事实。
(. . . there was something that Isabel had said that always stuck in his mind. Remember what you have and the other person doesn't. It was simple--almost too simple--advice and yet, like all such home advice, it expressed a profound truth.)