If the person you’re speaking to will think worse or less of the person you’re speaking about, then it’s gossip, so cut it out!

But when I was a child, the grown-ups taught us to ignore malicious gossip, and never to dignify it with a response.

Don't talk to people you don't want to talk to, and don't talk about stuff you don't want to talk about.

I don't like to meddle in my private affairs.

If people did not want their stories told, it would be better for them to keep away from me.

No one gossips about other people’s secret virtues.

no one ever gossips about the virtues of others

People who don't think shouldn't talk.

83. Avoid all conversation with the multitude or common people; for I would not have you subject to envy, much less to be ridiculous unto the multitude.

Gossip [is] the Devil's radio: Don't be a broadcaster.

Do not share your thoughts with people who think that what you are thinking is not worth thinking.

Don't make everyone know about your sadness.

Do you wish people to believe good of you? Don't speak.

God forbid that I should ever be a good influence on anybody.