Following are a number of back-translations as well as a sample translation for translators of Proverbs 19:8:

• Kupsabiny: “A person who has found wisdom wishes/desires life for himself,
  and if (he) has understanding/knowledge, (he) will prosper.” (Source: Kupsabiny Back Translation)
• Newari: “To get knowledge is to love oneself.
  Don’t lose the knowledge that you get.
  Through this [knowledge]
  you will become prosperous.” (Source: Newari Back Translation)
• Hiligaynon: “A man who tries to become-wise is-concerned of himself, and this man will-prosper.” (Source: Hiligaynon Back Translation)
• Kankanaey: “Help yourself (sing.) (lit. your body) so-that you (sing.) will learn, and value what you (sing.) have learned so-that your (sing.) life will-improve.” (Source: Kankanaey Back Translation)
• English: “Those who become wise are doing a favor for themselves;
  those who get good sense will prosper.” (Source: Translation for Translators)