I never heard of an old man forgetting where he had buried his money! Old people remember what interests them: the dates fixed for their lawsuits, and the names of their debtors and creditors.
我从来没有听说过一个老人忘记把钱埋在什么地方!老年人会记得他们感兴趣的事情:诉讼的日期，以及债务人和债权人的名字。