a closed mouth catches no flies

Etymology
. Equivalent expressions are found in several languages, so it is difficult to tell if it originated in English or a different language.

Proverb

 * 1) It's best not to talk too much.
 * 2) It's better to not say anything than to say something suspicious or troublesome.

Translations

 * Finnish: vaikeneminen on kultaa
 * Galician: en boca pechada non entran moscas
 * Italian: un bel tacer non fu mai scritto
 * Polish:
 * Spanish: en boca cerrada no entran moscas