Following are a number of back-translations as well as a sample translation for translators of Proverbs 10:8:

• Kupsabiny: “(The) understanding person listens to laws/commandments,
  but the fool who just talks/shouts a lot will be lost/destroyed.” (Source: Kupsabiny Back Translation)
• Newari: “People who have insight
  listen to instruction,
  but fools who keep on talking
  are headed for destruction.” (Source: Newari Back Translation)
• Hiligaynon: “A wise man obeys the commands. A man who speaks foolishness will-be-destroyed.” (Source: Hiligaynon Back Translation)
• Kankanaey: “The thinking/reflective-one, he hears and obeys commands, but the foolish-one whose words are many, he destroys his own self (lit. body).” (Source: Kankanaey Back Translation)
• English: “Wise people heed good instruction/advice,
  but people who talk foolishly will ruin themselves.” (Source: Translation for Translators)