"聪明人一句话就够了"

Simplified Meaning:

When you give advice or guidance to a smart person, it can sometimes make them annoyed or angry. Imagine you are really good at your job and know everything you need to do. If your boss or a colleague starts telling you how to do something you already know well, you might feel irritated because you don’t need that help. This can happen because the wise person might feel like their intelligence or skills are being underestimated. Another example could be a seasoned chef getting cooking tips from someone who just started learning to cook. The experienced chef might get frustrated because they already know what to do. In life, it's important to understand that even wise people might not always want or need advice, so it’s crucial to gauge when it’s appropriate to offer help.