('humorous') A crowd of reporters gathered around the coach after the game to hear him dispense his usual 'pearls of wisdom'.
He offered some 'pearls of wisdom' [=good advice] about raising children.
The island is a cultural 'pearl' of the Pacific.
(..) to have his father's watch. What are you gonna give me? Well... I don't know that I have much else ofvalue that belongs to me. But there's a pearl necklace. There's a ring that belonged to your mother. And I put them away... and they're to be yours. - Good night, Scout. (..)1962 To Kill a Mockingbird