Following are a number of back-translations as well as a sample translation for translators of Proverbs 13:19:

• Kupsabiny: “The desire/stomach of a person rejoices over something he has been waiting for for a long time,
  but sin has made foolish people blind/not to see.” (Source: Kupsabiny Back Translation)
• Newari: “When something longed for is obtained
  it is pleasant,
  but fools will not try to withdraw from evil work
  even to obtain what they long for.” (Source: Newari Back Translation)
• Hiligaynon: “How nice is the feeling of a man if what he desires-for will-be-fulfilled; that is why the fools will- not also -stop to do wickedness.” (Source: Hiligaynon Back Translation)
• Kankanaey: “Great is the happiness if/when what one wants to obtain is fulfilled, but those who are foolish, they refuse/dislike to be-changing their evil behavior.” (Source: Kankanaey Back Translation)
• English: “It is delightful to receive what we desire;
  foolish people hate/refuse to turn away from doing evil.” (Source: Translation for Translators)