Least said, soonest mended

Proverbial Meaning: Keeping quiet can sometimes help you avoid making a situation worse. 

Literal Origins: Sometimes when faced with a difficult emotional situation it is often better to say nothing as you can, if you're unlucky, make the situation worse by saying too much. 

Common Usage: This proverb is practically unheard of these days.

See also: Speech is silver; silence is golden .