What are the classic sentences that describe gossiping behind someone’s back?

1: No one speaks behind someone’s back, and no one speaks in front of someone.

2: The evil mouth of the world, coupled with the tongue that follows one's desires, is the source of all evil.

3: People who talk about right and wrong, right and wrong things, and those who talk about right and wrong are right and wrong people.

4: How can a gentleman get rid of the villain? The villain is like grass and survives.

5: He who thinks what he says is a gentleman, but who thinks what he says is wrong is a villain.

6: Summer insects cannot talk about the ice, and well frogs cannot talk about the sea.

7: Why don’t you, when the wind blows, soar to ninety thousand miles.

8: Sit quietly and think about your own faults, and don’t talk about the faults of others.

Extended information:

1: Gossip refers to gossip; talking about the rights and wrongs of others behind their backs; dissatisfied words, personal rumors, hearsay, behind-the-scenes information, etc.

2: Chat less and talk less if it has nothing to do with business. If you are dissatisfied, be careful so as not to let others talk about it.

Reference: Baidu Encyclopedia - Gossip