Following are a number of back-translations as well as a sample translation for translators of Proverbs 14:3:

• Kupsabiny: “A person who is foolish and proud, sharpens a sword for himself,
  but the wise, (he) keeps/guards his mouth.” (Source: Kupsabiny Back Translation)
• Newari: “Fools’ words will get them a beating
  on the back with a stick.
  But the words of the wise will save them.” (Source: Newari Back Translation)
• Hiligaynon: “What a fool man says can-harm him, but what the wise man says can-keep- him -(safe).” (Source: Hiligaynon Back Translation)
• Kankanaey: “The foolish-one who is proud (lit. his thoughts are high), he will-be-punished on-account-of his many words, but the words of a wise-person, they are his protection.” (Source: Kankanaey Back Translation)
• English: “Foolish people will be punished for what they say,
  but wise people will be protected by what they say.” (Source: Translation for Translators)