Meaning of 'A still tongue keeps a wise head'

What does the saying 'A still tongue keeps a wise head' mean?

Idiom: A still tongue keeps a wise head

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Similar Idioms

• Head over heels in love
• On the tip of your tongue
• Fat head
• Talk out of the back of your head
• Head is in the clouds
• Keep your head above water
• Penny wise, pound foolish
• Bury your head in the sand
• In over your head
• Over your head
• Head on the block
• Hit the nail on the head
• Head nor tail
• Head for the hills
• Cat got your tongue?
• Head on a spike
• Tongue in cheek
• Like a bear with a sore head
• Bite your tongue
• Get your head around something
• All in your head
• Slip of the tongue
• Knock something on the head
• Off the top of your head
• Head south
• Heap coals on someone's head
• Bite someone's head off
• Keep your head
• You've got rocks in your head
• Go to your head
• Hold your tongue
• Come to a head
• Turn something on its head
• Head is mince
• Tongue-tied
• Tongue-lashing
• Stand head and shoulders above
• Better be the head of a dog than the tail of a lion
• Lose your head
• Wrap your head around
• Early to bed, early to rise, makes a man healthy wealthy and wise
• Uneasy lies the head that wears the crown
• Bless your pointy little head
• Speak with a forked tongue