Cách sử dụng
The expression "a pearl of wisdom" is used when someone shares a very wise and valuable piece of advice or knowledge. It means that the advice is like a rare and valuable pearl that should be cherished and remembered. For example, if your grandmother tells you to always be honest and kind, you could say that she gave you a pearl of wisdom. The expression can be used in any situation where someone shares wise advice, such as in a conversation with friends, in a book or article, or in a speech.