Meaning of the word "a still tongue makes a wise head" in English

What does "a still tongue makes a wise head" mean in English? Explore the meaning, pronunciation, and specific usage of this word with Lingoland.

a still tongue makes a wise head

US /ə stɪl tʌŋ meɪks ə waɪz hed/
UK /ə stɪl tʌŋ meɪks ə waɪz hed/
"a still tongue makes a wise head" picture

Idiom

it is wise to remain silent or speak little, as listening is often more valuable than talking

Example:
I decided not to argue with the boss; after all, a still tongue makes a wise head.
He listened to everyone's complaints without saying a word, knowing that a still tongue makes a wise head.