There is a very old expression ‘do not cast pearls before swine.‘ The expression is commonly known as being from a biblical verse. I recently read information of it’S existence well before then. Here is the link where you can read more: Phrases.org-more info
… If you say that someone is casting pearls before swine, you mean that they are wasting their time by offering something that is helpful or valuable to someone who does not appreciate or understand it.
I don’t mean to imply this is the subject of “Pearl”, just ran across the info while searching for a pearl relatable quote.
He who would search for pearls must dive below. John Dryden